857421720

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{499}}^1$

素因数の和:599

約数の個数: 256

約数和(自身を含む): 3009600000

約数和(自身を除く): 2152178280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 37, 40, 43, 45, 54, 60, 72, 74, 86, 90, 108, 111, 120, 129, 135, 148, 172, 180, 185, 215, 216, 222, 258, 270, 296, 333, 344, 360, 370, 387, 430, 444, 499, 516, 540, 555, 645, 666, 740, 774, 860, 888, 998, 999, 1032, 1080, 1110, 1161, 1290, 1332, 1480, 1497, 1548, 1591, 1665, 1720, 1935, 1996, 1998, 2220, 2322, 2495, 2580, 2664, 2994, 3096, 3182, 3330, 3870, 3992, 3996, 4440, 4491, 4644, 4773, 4990, 4995, 5160, 5805, 5988, 6364, 6660, 7485, 7740, 7955, 7992, 8982, 9288, 9546, 9980, 9990, 11610, 11976, 12728, 13320, 13473, 14319, 14970, 15480, 15910, 17964, 18463, 19092, 19960, 19980, 21457, 22455, 23220, 23865, 26946, 28638, 29940, 31820, 35928, 36926, 38184, 39960, 42914, 42957, 44910, 46440, 47730, 53892, 55389, 57276, 59880, 63640, 64371, 67365, 71595, 73852, 85828, 85914, 89820, 92315, 95460, 107285, 107784, 110778, 114552, 128742, 134730, 143190, 147704, 166167, 171656, 171828, 179640, 184630, 190920, 193113, 214570, 214785, 221556, 257484, 269460, 276945, 286380, 321855, 332334, 343656, 369260, 386226, 429140, 429570, 443112, 498501, 514968, 538920, 553890, 572760, 579339, 643710, 664668, 738520, 772452, 793909, 830835, 858280, 859140, 965565, 997002, 1107780, 1158678, 1287420, 1329336, 1544904, 1587818, 1661670, 1718280, 1931130, 1994004, 2215560, 2317356, 2381727, 2492505, 2574840, 2896695, 3175636, 3323340, 3862260, 3969545, 3988008, 4634712, 4763454, 4985010, 5793390, 6351272, 6646680, 7145181, 7724520, 7939090, 9526908, 9970020, 11586780, 11908635, 14290362, 15878180, 19053816, 19940040, 21435543, 23173560, 23817270, 28580724, 31756360, 35725905, 42871086, 47634540, 57161448, 71451810, 85742172, 95269080, 107177715, 142903620, 171484344, 214355430, 285807240, 428710860, 857421720]

約数ペア:

[(1, 857421720), (2, 428710860), (3, 285807240), (4, 214355430), (5, 171484344), (6, 142903620), (8, 107177715), (9, 95269080), (10, 85742172), (12, 71451810), (15, 57161448), (18, 47634540), (20, 42871086), (24, 35725905), (27, 31756360), (30, 28580724), (36, 23817270), (37, 23173560), (40, 21435543), (43, 19940040), (45, 19053816), (54, 15878180), (60, 14290362), (72, 11908635), (74, 11586780), (86, 9970020), (90, 9526908), (108, 7939090), (111, 7724520), (120, 7145181), (129, 6646680), (135, 6351272), (148, 5793390), (172, 4985010), (180, 4763454), (185, 4634712), (215, 3988008), (216, 3969545), (222, 3862260), (258, 3323340), (270, 3175636), (296, 2896695), (333, 2574840), (344, 2492505), (360, 2381727), (370, 2317356), (387, 2215560), (430, 1994004), (444, 1931130), (499, 1718280), (516, 1661670), (540, 1587818), (555, 1544904), (645, 1329336), (666, 1287420), (740, 1158678), (774, 1107780), (860, 997002), (888, 965565), (998, 859140), (999, 858280), (1032, 830835), (1080, 793909), (1110, 772452), (1161, 738520), (1290, 664668), (1332, 643710), (1480, 579339), (1497, 572760), (1548, 553890), (1591, 538920), (1665, 514968), (1720, 498501), (1935, 443112), (1996, 429570), (1998, 429140), (2220, 386226), (2322, 369260), (2495, 343656), (2580, 332334), (2664, 321855), (2994, 286380), (3096, 276945), (3182, 269460), (3330, 257484), (3870, 221556), (3992, 214785), (3996, 214570), (4440, 193113), (4491, 190920), (4644, 184630), (4773, 179640), (4990, 171828), (4995, 171656), (5160, 166167), (5805, 147704), (5988, 143190), (6364, 134730), (6660, 128742), (7485, 114552), (7740, 110778), (7955, 107784), (7992, 107285), (8982, 95460), (9288, 92315), (9546, 89820), (9980, 85914), (9990, 85828), (11610, 73852), (11976, 71595), (12728, 67365), (13320, 64371), (13473, 63640), (14319, 59880), (14970, 57276), (15480, 55389), (15910, 53892), (17964, 47730), (18463, 46440), (19092, 44910), (19960, 42957), (19980, 42914), (21457, 39960), (22455, 38184), (23220, 36926), (23865, 35928), (26946, 31820), (28638, 29940)]