64847080

素因数分解:

$2^3\times 5^1\times {\mathrm{1621177}}^1$

素因数の和:1621188

約数の個数: 16

約数和(自身を含む): 145906020

約数和(自身を除く): 81058940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1621177, 3242354, 6484708, 8105885, 12969416, 16211770, 32423540, 64847080]

約数ペア:

[(1, 64847080), (2, 32423540), (4, 16211770), (5, 12969416), (8, 8105885), (10, 6484708), (20, 3242354), (40, 1621177)]