681164

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1$

素因数の和:265

約数の個数: 24

約数和(自身を含む): 1321488

約数和(自身を除く): 640324

約数列:

[1, 2, 4, 11, 22, 44, 113, 137, 226, 274, 452, 548, 1243, 1507, 2486, 3014, 4972, 6028, 15481, 30962, 61924, 170291, 340582, 681164]

約数ペア:

[(1, 681164), (2, 340582), (4, 170291), (11, 61924), (22, 30962), (44, 15481), (113, 6028), (137, 4972), (226, 3014), (274, 2486), (452, 1507), (548, 1243)]