387888920

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{334387}}^1$

素因数の和:334427

約数の個数: 32

約数和(自身を含む): 902847600

約数和(自身を除く): 514958680

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 334387, 668774, 1337548, 1671935, 2675096, 3343870, 6687740, 9697223, 13375480, 19394446, 38788892, 48486115, 77577784, 96972230, 193944460, 387888920]

約数ペア:

[(1, 387888920), (2, 193944460), (4, 96972230), (5, 77577784), (8, 48486115), (10, 38788892), (20, 19394446), (29, 13375480), (40, 9697223), (58, 6687740), (116, 3343870), (145, 2675096), (232, 1671935), (290, 1337548), (580, 668774), (1160, 334387)]