82321160

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{239}}^1$

素因数の和:438

約数の個数: 64

約数和(自身を含む): 190080000

約数和(自身を除く): 107758840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 109, 158, 218, 239, 316, 395, 436, 478, 545, 632, 790, 872, 956, 1090, 1195, 1580, 1912, 2180, 2390, 3160, 4360, 4780, 8611, 9560, 17222, 18881, 26051, 34444, 37762, 43055, 52102, 68888, 75524, 86110, 94405, 104204, 130255, 151048, 172220, 188810, 208408, 260510, 344440, 377620, 521020, 755240, 1042040, 2058029, 4116058, 8232116, 10290145, 16464232, 20580290, 41160580, 82321160]

約数ペア:

[(1, 82321160), (2, 41160580), (4, 20580290), (5, 16464232), (8, 10290145), (10, 8232116), (20, 4116058), (40, 2058029), (79, 1042040), (109, 755240), (158, 521020), (218, 377620), (239, 344440), (316, 260510), (395, 208408), (436, 188810), (478, 172220), (545, 151048), (632, 130255), (790, 104204), (872, 94405), (956, 86110), (1090, 75524), (1195, 68888), (1580, 52102), (1912, 43055), (2180, 37762), (2390, 34444), (3160, 26051), (4360, 18881), (4780, 17222), (8611, 9560)]