631078640

素因数分解:

$2^4\times 5^1\times {\mathrm{7888483}}^1$

素因数の和:7888496

約数の個数: 20

約数和(自身を含む): 1467258024

約数和(自身を除く): 836179384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 7888483, 15776966, 31553932, 39442415, 63107864, 78884830, 126215728, 157769660, 315539320, 631078640]

約数ペア:

[(1, 631078640), (2, 315539320), (4, 157769660), (5, 126215728), (8, 78884830), (10, 63107864), (16, 39442415), (20, 31553932), (40, 15776966), (80, 7888483)]