87020390

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{1289}}^1$

素因数の和:1496

約数の個数: 32

約数和(自身を含む): 161425440

約数和(自身を除く): 74405050

約数列:

[1, 2, 5, 10, 43, 86, 157, 215, 314, 430, 785, 1289, 1570, 2578, 6445, 6751, 12890, 13502, 33755, 55427, 67510, 110854, 202373, 277135, 404746, 554270, 1011865, 2023730, 8702039, 17404078, 43510195, 87020390]

約数ペア:

[(1, 87020390), (2, 43510195), (5, 17404078), (10, 8702039), (43, 2023730), (86, 1011865), (157, 554270), (215, 404746), (314, 277135), (430, 202373), (785, 110854), (1289, 67510), (1570, 55427), (2578, 33755), (6445, 13502), (6751, 12890)]