820512856790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{4129}}^1\times {\mathrm{164231}}^1$

素因数の和:168389

約数の個数: 48

約数和(自身を含む): 1623797915040

約数和(自身を除く): 803285058250

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 4129, 8258, 20645, 41290, 45419, 90838, 164231, 227095, 328462, 454190, 499609, 821155, 999218, 1642310, 1806541, 2498045, 3613082, 4996090, 9032705, 18065410, 19871951, 39743902, 99359755, 198719510, 678109799, 1356219598, 3390548995, 6781097990, 7459207789, 14918415578, 37296038945, 74592077890, 82051285679, 164102571358, 410256428395, 820512856790]

約数ペア:

[(1, 820512856790), (2, 410256428395), (5, 164102571358), (10, 82051285679), (11, 74592077890), (22, 37296038945), (55, 14918415578), (110, 7459207789), (121, 6781097990), (242, 3390548995), (605, 1356219598), (1210, 678109799), (4129, 198719510), (8258, 99359755), (20645, 39743902), (41290, 19871951), (45419, 18065410), (90838, 9032705), (164231, 4996090), (227095, 3613082), (328462, 2498045), (454190, 1806541), (499609, 1642310), (821155, 999218)]