647166420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{641}}^1$

素因数の和:806

約数の個数: 144

約数和(自身を含む): 2019064320

約数和(自身を除く): 1371897900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 79, 90, 142, 158, 180, 213, 237, 284, 316, 355, 395, 426, 474, 639, 641, 710, 711, 790, 852, 948, 1065, 1185, 1278, 1282, 1420, 1422, 1580, 1923, 2130, 2370, 2556, 2564, 2844, 3195, 3205, 3555, 3846, 4260, 4740, 5609, 5769, 6390, 6410, 7110, 7692, 9615, 11218, 11538, 12780, 12820, 14220, 16827, 19230, 22436, 23076, 28045, 28845, 33654, 38460, 45511, 50481, 50639, 56090, 57690, 67308, 84135, 91022, 100962, 101278, 112180, 115380, 136533, 151917, 168270, 182044, 201924, 202556, 227555, 252405, 253195, 273066, 303834, 336540, 409599, 455110, 455751, 504810, 506390, 546132, 607668, 682665, 759585, 819198, 910220, 911502, 1009620, 1012780, 1365330, 1519170, 1638396, 1823004, 2047995, 2278755, 2730660, 3038340, 3595369, 4095990, 4557510, 7190738, 8191980, 9115020, 10786107, 14381476, 17976845, 21572214, 32358321, 35953690, 43144428, 53930535, 64716642, 71907380, 107861070, 129433284, 161791605, 215722140, 323583210, 647166420]

約数ペア:

[(1, 647166420), (2, 323583210), (3, 215722140), (4, 161791605), (5, 129433284), (6, 107861070), (9, 71907380), (10, 64716642), (12, 53930535), (15, 43144428), (18, 35953690), (20, 32358321), (30, 21572214), (36, 17976845), (45, 14381476), (60, 10786107), (71, 9115020), (79, 8191980), (90, 7190738), (142, 4557510), (158, 4095990), (180, 3595369), (213, 3038340), (237, 2730660), (284, 2278755), (316, 2047995), (355, 1823004), (395, 1638396), (426, 1519170), (474, 1365330), (639, 1012780), (641, 1009620), (710, 911502), (711, 910220), (790, 819198), (852, 759585), (948, 682665), (1065, 607668), (1185, 546132), (1278, 506390), (1282, 504810), (1420, 455751), (1422, 455110), (1580, 409599), (1923, 336540), (2130, 303834), (2370, 273066), (2556, 253195), (2564, 252405), (2844, 227555), (3195, 202556), (3205, 201924), (3555, 182044), (3846, 168270), (4260, 151917), (4740, 136533), (5609, 115380), (5769, 112180), (6390, 101278), (6410, 100962), (7110, 91022), (7692, 84135), (9615, 67308), (11218, 57690), (11538, 56090), (12780, 50639), (12820, 50481), (14220, 45511), (16827, 38460), (19230, 33654), (22436, 28845), (23076, 28045)]