66789620

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{49843}}^1$

素因数の和:49919

約数の個数: 24

約数和(自身を含む): 142354464

約数和(自身を除く): 75564844

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 49843, 99686, 199372, 249215, 498430, 996860, 3339481, 6678962, 13357924, 16697405, 33394810, 66789620]

約数ペア:

[(1, 66789620), (2, 33394810), (4, 16697405), (5, 13357924), (10, 6678962), (20, 3339481), (67, 996860), (134, 498430), (268, 249215), (335, 199372), (670, 99686), (1340, 49843)]