20781132720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{887}}^1$

素因数の和:1048

約数の個数: 320

約数和(自身を含む): 69005869056

約数和(自身を除く): 48224736336

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 47, 48, 60, 62, 67, 80, 93, 94, 120, 124, 134, 141, 155, 186, 188, 201, 235, 240, 248, 268, 282, 310, 335, 372, 376, 402, 465, 470, 496, 536, 564, 620, 670, 705, 744, 752, 804, 887, 930, 940, 1005, 1072, 1128, 1240, 1340, 1410, 1457, 1488, 1608, 1774, 1860, 1880, 2010, 2077, 2256, 2480, 2661, 2680, 2820, 2914, 3149, 3216, 3548, 3720, 3760, 4020, 4154, 4371, 4435, 5322, 5360, 5640, 5828, 6231, 6298, 7096, 7285, 7440, 8040, 8308, 8742, 8870, 9447, 10385, 10644, 11280, 11656, 12462, 12596, 13305, 14192, 14570, 15745, 16080, 16616, 17484, 17740, 18894, 20770, 21288, 21855, 23312, 24924, 25192, 26610, 27497, 29140, 31155, 31490, 33232, 34968, 35480, 37788, 41540, 41689, 42576, 43710, 47235, 49848, 50384, 53220, 54994, 58280, 59429, 62310, 62980, 69936, 70960, 75576, 82491, 83080, 83378, 87420, 94470, 97619, 99696, 106440, 109988, 116560, 118858, 124620, 125067, 125960, 137485, 151152, 164982, 166160, 166756, 174840, 178287, 188940, 195238, 208445, 212880, 219976, 237716, 249240, 250134, 251920, 274970, 292857, 297145, 329964, 333512, 349680, 356574, 377880, 390476, 412455, 416890, 439952, 475432, 488095, 498480, 500268, 549940, 585714, 594290, 625335, 659928, 667024, 713148, 755760, 780952, 824910, 833780, 891435, 950864, 976190, 1000536, 1099880, 1171428, 1188580, 1250670, 1292359, 1319856, 1426296, 1464285, 1561904, 1649820, 1667560, 1782870, 1842299, 1952380, 2001072, 2199760, 2342856, 2377160, 2501340, 2584718, 2793163, 2852592, 2928570, 3299640, 3335120, 3565740, 3684598, 3877077, 3904760, 4685712, 4754320, 5002680, 5169436, 5526897, 5586326, 5857140, 6461795, 6599280, 7131480, 7369196, 7754154, 7809520, 8379489, 9211495, 10005360, 10338872, 11053794, 11172652, 11714280, 12923590, 13965815, 14262960, 14738392, 15508308, 16758978, 18422990, 19385385, 20677744, 22107588, 22345304, 23428560, 25847180, 27634485, 27931630, 29476784, 31016616, 33517956, 36845980, 38770770, 41897445, 44215176, 44690608, 51694360, 55268970, 55863260, 62033232, 67035912, 73691960, 77541540, 83794890, 86588053, 88430352, 103388720, 110537940, 111726520, 134071824, 147383920, 155083080, 167589780, 173176106, 221075880, 223453040, 259764159, 310166160, 335179560, 346352212, 432940265, 442151760, 519528318, 670359120, 692704424, 865880530, 1039056636, 1298820795, 1385408848, 1731761060, 2078113272, 2597641590, 3463522120, 4156226544, 5195283180, 6927044240, 10390566360, 20781132720]

約数ペア:

[(1, 20781132720), (2, 10390566360), (3, 6927044240), (4, 5195283180), (5, 4156226544), (6, 3463522120), (8, 2597641590), (10, 2078113272), (12, 1731761060), (15, 1385408848), (16, 1298820795), (20, 1039056636), (24, 865880530), (30, 692704424), (31, 670359120), (40, 519528318), (47, 442151760), (48, 432940265), (60, 346352212), (62, 335179560), (67, 310166160), (80, 259764159), (93, 223453040), (94, 221075880), (120, 173176106), (124, 167589780), (134, 155083080), (141, 147383920), (155, 134071824), (186, 111726520), (188, 110537940), (201, 103388720), (235, 88430352), (240, 86588053), (248, 83794890), (268, 77541540), (282, 73691960), (310, 67035912), (335, 62033232), (372, 55863260), (376, 55268970), (402, 51694360), (465, 44690608), (470, 44215176), (496, 41897445), (536, 38770770), (564, 36845980), (620, 33517956), (670, 31016616), (705, 29476784), (744, 27931630), (752, 27634485), (804, 25847180), (887, 23428560), (930, 22345304), (940, 22107588), (1005, 20677744), (1072, 19385385), (1128, 18422990), (1240, 16758978), (1340, 15508308), (1410, 14738392), (1457, 14262960), (1488, 13965815), (1608, 12923590), (1774, 11714280), (1860, 11172652), (1880, 11053794), (2010, 10338872), (2077, 10005360), (2256, 9211495), (2480, 8379489), (2661, 7809520), (2680, 7754154), (2820, 7369196), (2914, 7131480), (3149, 6599280), (3216, 6461795), (3548, 5857140), (3720, 5586326), (3760, 5526897), (4020, 5169436), (4154, 5002680), (4371, 4754320), (4435, 4685712), (5322, 3904760), (5360, 3877077), (5640, 3684598), (5828, 3565740), (6231, 3335120), (6298, 3299640), (7096, 2928570), (7285, 2852592), (7440, 2793163), (8040, 2584718), (8308, 2501340), (8742, 2377160), (8870, 2342856), (9447, 2199760), (10385, 2001072), (10644, 1952380), (11280, 1842299), (11656, 1782870), (12462, 1667560), (12596, 1649820), (13305, 1561904), (14192, 1464285), (14570, 1426296), (15745, 1319856), (16080, 1292359), (16616, 1250670), (17484, 1188580), (17740, 1171428), (18894, 1099880), (20770, 1000536), (21288, 976190), (21855, 950864), (23312, 891435), (24924, 833780), (25192, 824910), (26610, 780952), (27497, 755760), (29140, 713148), (31155, 667024), (31490, 659928), (33232, 625335), (34968, 594290), (35480, 585714), (37788, 549940), (41540, 500268), (41689, 498480), (42576, 488095), (43710, 475432), (47235, 439952), (49848, 416890), (50384, 412455), (53220, 390476), (54994, 377880), (58280, 356574), (59429, 349680), (62310, 333512), (62980, 329964), (69936, 297145), (70960, 292857), (75576, 274970), (82491, 251920), (83080, 250134), (83378, 249240), (87420, 237716), (94470, 219976), (97619, 212880), (99696, 208445), (106440, 195238), (109988, 188940), (116560, 178287), (118858, 174840), (124620, 166756), (125067, 166160), (125960, 164982), (137485, 151152)]