66480140

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{46817}}^1$

素因数の和:46897

約数の個数: 24

約数和(自身を含む): 141577632

約数和(自身を除く): 75097492

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 46817, 93634, 187268, 234085, 468170, 936340, 3324007, 6648014, 13296028, 16620035, 33240070, 66480140]

約数ペア:

[(1, 66480140), (2, 33240070), (4, 16620035), (5, 13296028), (10, 6648014), (20, 3324007), (71, 936340), (142, 468170), (284, 234085), (355, 187268), (710, 93634), (1420, 46817)]