66418960

素因数分解:

$2^4\times 5^1\times {\mathrm{830237}}^1$

素因数の和:830250

約数の個数: 20

約数和(自身を含む): 154424268

約数和(自身を除く): 88005308

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 830237, 1660474, 3320948, 4151185, 6641896, 8302370, 13283792, 16604740, 33209480, 66418960]

約数ペア:

[(1, 66418960), (2, 33209480), (4, 16604740), (5, 13283792), (8, 8302370), (10, 6641896), (16, 4151185), (20, 3320948), (40, 1660474), (80, 830237)]