309620

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1$

素因数の和:259

約数の個数: 24

約数和(自身を含む): 660744

約数和(自身を除く): 351124

約数列:

[1, 2, 4, 5, 10, 20, 113, 137, 226, 274, 452, 548, 565, 685, 1130, 1370, 2260, 2740, 15481, 30962, 61924, 77405, 154810, 309620]

約数ペア:

[(1, 309620), (2, 154810), (4, 77405), (5, 61924), (10, 30962), (20, 15481), (113, 2740), (137, 2260), (226, 1370), (274, 1130), (452, 685), (548, 565)]