1640381280

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1\times {\mathrm{239}}^1$

素因数の和:517

約数の個数: 192

約数和(自身を含む): 5283532800

約数和(自身を除く): 3643151520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 79, 80, 96, 120, 158, 160, 181, 237, 239, 240, 316, 362, 395, 474, 478, 480, 543, 632, 717, 724, 790, 905, 948, 956, 1086, 1185, 1195, 1264, 1434, 1448, 1580, 1810, 1896, 1912, 2172, 2370, 2390, 2528, 2715, 2868, 2896, 3160, 3585, 3620, 3792, 3824, 4344, 4740, 4780, 5430, 5736, 5792, 6320, 7170, 7240, 7584, 7648, 8688, 9480, 9560, 10860, 11472, 12640, 14299, 14340, 14480, 17376, 18881, 18960, 19120, 21720, 22944, 28598, 28680, 28960, 37762, 37920, 38240, 42897, 43259, 43440, 56643, 57196, 57360, 71495, 75524, 85794, 86518, 86880, 94405, 113286, 114392, 114720, 129777, 142990, 151048, 171588, 173036, 188810, 214485, 216295, 226572, 228784, 259554, 283215, 285980, 302096, 343176, 346072, 377620, 428970, 432590, 453144, 457568, 519108, 566430, 571960, 604192, 648885, 686352, 692144, 755240, 857940, 865180, 906288, 1038216, 1132860, 1143920, 1297770, 1372704, 1384288, 1510480, 1715880, 1730360, 1812576, 2076432, 2265720, 2287840, 2595540, 3020960, 3417461, 3431760, 3460720, 4152864, 4531440, 5191080, 6834922, 6863520, 6921440, 9062880, 10252383, 10382160, 13669844, 17087305, 20504766, 20764320, 27339688, 34174610, 41009532, 51261915, 54679376, 68349220, 82019064, 102523830, 109358752, 136698440, 164038128, 205047660, 273396880, 328076256, 410095320, 546793760, 820190640, 1640381280]

約数ペア:

[(1, 1640381280), (2, 820190640), (3, 546793760), (4, 410095320), (5, 328076256), (6, 273396880), (8, 205047660), (10, 164038128), (12, 136698440), (15, 109358752), (16, 102523830), (20, 82019064), (24, 68349220), (30, 54679376), (32, 51261915), (40, 41009532), (48, 34174610), (60, 27339688), (79, 20764320), (80, 20504766), (96, 17087305), (120, 13669844), (158, 10382160), (160, 10252383), (181, 9062880), (237, 6921440), (239, 6863520), (240, 6834922), (316, 5191080), (362, 4531440), (395, 4152864), (474, 3460720), (478, 3431760), (480, 3417461), (543, 3020960), (632, 2595540), (717, 2287840), (724, 2265720), (790, 2076432), (905, 1812576), (948, 1730360), (956, 1715880), (1086, 1510480), (1185, 1384288), (1195, 1372704), (1264, 1297770), (1434, 1143920), (1448, 1132860), (1580, 1038216), (1810, 906288), (1896, 865180), (1912, 857940), (2172, 755240), (2370, 692144), (2390, 686352), (2528, 648885), (2715, 604192), (2868, 571960), (2896, 566430), (3160, 519108), (3585, 457568), (3620, 453144), (3792, 432590), (3824, 428970), (4344, 377620), (4740, 346072), (4780, 343176), (5430, 302096), (5736, 285980), (5792, 283215), (6320, 259554), (7170, 228784), (7240, 226572), (7584, 216295), (7648, 214485), (8688, 188810), (9480, 173036), (9560, 171588), (10860, 151048), (11472, 142990), (12640, 129777), (14299, 114720), (14340, 114392), (14480, 113286), (17376, 94405), (18881, 86880), (18960, 86518), (19120, 85794), (21720, 75524), (22944, 71495), (28598, 57360), (28680, 57196), (28960, 56643), (37762, 43440), (37920, 43259), (38240, 42897)]