645788

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1129}}^1$

素因数の和:1157

約数の個数: 24

約数和(自身を含む): 1328880

約数和(自身を除く): 683092

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 572, 1129, 2258, 4516, 12419, 14677, 24838, 29354, 49676, 58708, 161447, 322894, 645788]

約数ペア:

[(1, 645788), (2, 322894), (4, 161447), (11, 58708), (13, 49676), (22, 29354), (26, 24838), (44, 14677), (52, 12419), (143, 4516), (286, 2258), (572, 1129)]