8992940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{997}}^1$

素因数の和:1058

約数の個数: 48

約数和(自身を含む): 21125664

約数和(自身を除く): 12132724

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 997, 1804, 1994, 2255, 3988, 4510, 4985, 9020, 9970, 10967, 19940, 21934, 40877, 43868, 54835, 81754, 109670, 163508, 204385, 219340, 408770, 449647, 817540, 899294, 1798588, 2248235, 4496470, 8992940]

約数ペア:

[(1, 8992940), (2, 4496470), (4, 2248235), (5, 1798588), (10, 899294), (11, 817540), (20, 449647), (22, 408770), (41, 219340), (44, 204385), (55, 163508), (82, 109670), (110, 81754), (164, 54835), (205, 43868), (220, 40877), (410, 21934), (451, 19940), (820, 10967), (902, 9970), (997, 9020), (1804, 4985), (1994, 4510), (2255, 3988)]