218445320

素因数分解:

$2^3\times 5^1\times {\mathrm{659}}^1\times {\mathrm{8287}}^1$

素因数の和:8957

約数の個数: 32

約数和(自身を含む): 492307200

約数和(自身を除く): 273861880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 659, 1318, 2636, 3295, 5272, 6590, 8287, 13180, 16574, 26360, 33148, 41435, 66296, 82870, 165740, 331480, 5461133, 10922266, 21844532, 27305665, 43689064, 54611330, 109222660, 218445320]

約数ペア:

[(1, 218445320), (2, 109222660), (4, 54611330), (5, 43689064), (8, 27305665), (10, 21844532), (20, 10922266), (40, 5461133), (659, 331480), (1318, 165740), (2636, 82870), (3295, 66296), (5272, 41435), (6590, 33148), (8287, 26360), (13180, 16574)]