81847440

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1$

素因数の和:262

約数の個数: 240

約数和(自身を含む): 300218880

約数和(自身を除く): 218371440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 31, 36, 38, 40, 45, 48, 57, 60, 62, 72, 76, 80, 90, 93, 95, 114, 120, 124, 144, 152, 155, 171, 180, 186, 190, 193, 228, 240, 248, 279, 285, 304, 310, 342, 360, 372, 380, 386, 456, 465, 496, 558, 570, 579, 589, 620, 684, 720, 744, 760, 772, 855, 912, 930, 965, 1116, 1140, 1158, 1178, 1240, 1368, 1395, 1488, 1520, 1544, 1710, 1737, 1767, 1860, 1930, 2232, 2280, 2316, 2356, 2480, 2736, 2790, 2895, 2945, 3088, 3420, 3474, 3534, 3667, 3720, 3860, 4464, 4560, 4632, 4712, 5301, 5580, 5790, 5890, 5983, 6840, 6948, 7068, 7334, 7440, 7720, 8685, 8835, 9264, 9424, 10602, 11001, 11160, 11580, 11780, 11966, 13680, 13896, 14136, 14668, 15440, 17370, 17670, 17949, 18335, 21204, 22002, 22320, 23160, 23560, 23932, 26505, 27792, 28272, 29336, 29915, 33003, 34740, 35340, 35898, 36670, 42408, 44004, 46320, 47120, 47864, 53010, 53847, 55005, 58672, 59830, 66006, 69480, 70680, 71796, 73340, 84816, 88008, 89745, 95728, 106020, 107694, 110010, 113677, 119660, 132012, 138960, 141360, 143592, 146680, 165015, 176016, 179490, 212040, 215388, 220020, 227354, 239320, 264024, 269235, 287184, 293360, 330030, 341031, 358980, 424080, 430776, 440040, 454708, 478640, 528048, 538470, 568385, 660060, 682062, 717960, 861552, 880080, 909416, 1023093, 1076940, 1136770, 1320120, 1364124, 1435920, 1705155, 1818832, 2046186, 2153880, 2273540, 2640240, 2728248, 3410310, 4092372, 4307760, 4547080, 5115465, 5456496, 6820620, 8184744, 9094160, 10230930, 13641240, 16369488, 20461860, 27282480, 40923720, 81847440]

約数ペア:

[(1, 81847440), (2, 40923720), (3, 27282480), (4, 20461860), (5, 16369488), (6, 13641240), (8, 10230930), (9, 9094160), (10, 8184744), (12, 6820620), (15, 5456496), (16, 5115465), (18, 4547080), (19, 4307760), (20, 4092372), (24, 3410310), (30, 2728248), (31, 2640240), (36, 2273540), (38, 2153880), (40, 2046186), (45, 1818832), (48, 1705155), (57, 1435920), (60, 1364124), (62, 1320120), (72, 1136770), (76, 1076940), (80, 1023093), (90, 909416), (93, 880080), (95, 861552), (114, 717960), (120, 682062), (124, 660060), (144, 568385), (152, 538470), (155, 528048), (171, 478640), (180, 454708), (186, 440040), (190, 430776), (193, 424080), (228, 358980), (240, 341031), (248, 330030), (279, 293360), (285, 287184), (304, 269235), (310, 264024), (342, 239320), (360, 227354), (372, 220020), (380, 215388), (386, 212040), (456, 179490), (465, 176016), (496, 165015), (558, 146680), (570, 143592), (579, 141360), (589, 138960), (620, 132012), (684, 119660), (720, 113677), (744, 110010), (760, 107694), (772, 106020), (855, 95728), (912, 89745), (930, 88008), (965, 84816), (1116, 73340), (1140, 71796), (1158, 70680), (1178, 69480), (1240, 66006), (1368, 59830), (1395, 58672), (1488, 55005), (1520, 53847), (1544, 53010), (1710, 47864), (1737, 47120), (1767, 46320), (1860, 44004), (1930, 42408), (2232, 36670), (2280, 35898), (2316, 35340), (2356, 34740), (2480, 33003), (2736, 29915), (2790, 29336), (2895, 28272), (2945, 27792), (3088, 26505), (3420, 23932), (3474, 23560), (3534, 23160), (3667, 22320), (3720, 22002), (3860, 21204), (4464, 18335), (4560, 17949), (4632, 17670), (4712, 17370), (5301, 15440), (5580, 14668), (5790, 14136), (5890, 13896), (5983, 13680), (6840, 11966), (6948, 11780), (7068, 11580), (7334, 11160), (7440, 11001), (7720, 10602), (8685, 9424), (8835, 9264)]