12655880

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{7717}}^1$

素因数の和:7769

約数の個数: 32

約数和(自身を含む): 29174040

約数和(自身を除く): 16518160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 7717, 15434, 30868, 38585, 61736, 77170, 154340, 308680, 316397, 632794, 1265588, 1581985, 2531176, 3163970, 6327940, 12655880]

約数ペア:

[(1, 12655880), (2, 6327940), (4, 3163970), (5, 2531176), (8, 1581985), (10, 1265588), (20, 632794), (40, 316397), (41, 308680), (82, 154340), (164, 77170), (205, 61736), (328, 38585), (410, 30868), (820, 15434), (1640, 7717)]