42738820

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{20747}}^1$

素因数の和:20859

約数の個数: 24

約数和(自身を含む): 90627264

約数和(自身を除く): 47888444

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 20747, 41494, 82988, 103735, 207470, 414940, 2136941, 4273882, 8547764, 10684705, 21369410, 42738820]

約数ペア:

[(1, 42738820), (2, 21369410), (4, 10684705), (5, 8547764), (10, 4273882), (20, 2136941), (103, 414940), (206, 207470), (412, 103735), (515, 82988), (1030, 41494), (2060, 20747)]