619240

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1$

素因数の和:261

約数の個数: 32

約数和(自身を含む): 1415880

約数和(自身を除く): 796640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 137, 226, 274, 452, 548, 565, 685, 904, 1096, 1130, 1370, 2260, 2740, 4520, 5480, 15481, 30962, 61924, 77405, 123848, 154810, 309620, 619240]

約数ペア:

[(1, 619240), (2, 309620), (4, 154810), (5, 123848), (8, 77405), (10, 61924), (20, 30962), (40, 15481), (113, 5480), (137, 4520), (226, 2740), (274, 2260), (452, 1370), (548, 1130), (565, 1096), (685, 904)]