1268408020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5765491}}^1$

素因数の和:5765511

約数の個数: 24

約数和(自身を含む): 2905807968

約数和(自身を除く): 1637399948

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 5765491, 11530982, 23061964, 28827455, 57654910, 63420401, 115309820, 126840802, 253681604, 317102005, 634204010, 1268408020]

約数ペア:

[(1, 1268408020), (2, 634204010), (4, 317102005), (5, 253681604), (10, 126840802), (11, 115309820), (20, 63420401), (22, 57654910), (44, 28827455), (55, 23061964), (110, 11530982), (220, 5765491)]