855989840

素因数分解:

$2^4\times 5^1\times {\mathrm{1213}}^1\times {\mathrm{8821}}^1$

素因数の和:10047

約数の個数: 40

約数和(自身を含む): 1992042888

約数和(自身を除く): 1136053048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1213, 2426, 4852, 6065, 8821, 9704, 12130, 17642, 19408, 24260, 35284, 44105, 48520, 70568, 88210, 97040, 141136, 176420, 352840, 705680, 10699873, 21399746, 42799492, 53499365, 85598984, 106998730, 171197968, 213997460, 427994920, 855989840]

約数ペア:

[(1, 855989840), (2, 427994920), (4, 213997460), (5, 171197968), (8, 106998730), (10, 85598984), (16, 53499365), (20, 42799492), (40, 21399746), (80, 10699873), (1213, 705680), (2426, 352840), (4852, 176420), (6065, 141136), (8821, 97040), (9704, 88210), (12130, 70568), (17642, 48520), (19408, 44105), (24260, 35284)]