105884920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61561}}^1$

素因数の和:61615

約数の個数: 32

約数和(自身を含む): 243785520

約数和(自身を除く): 137900600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 61561, 123122, 246244, 307805, 492488, 615610, 1231220, 2462440, 2647123, 5294246, 10588492, 13235615, 21176984, 26471230, 52942460, 105884920]

約数ペア:

[(1, 105884920), (2, 52942460), (4, 26471230), (5, 21176984), (8, 13235615), (10, 10588492), (20, 5294246), (40, 2647123), (43, 2462440), (86, 1231220), (172, 615610), (215, 492488), (344, 307805), (430, 246244), (860, 123122), (1720, 61561)]