78644620

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{38177}}^1$

素因数の和:38289

約数の個数: 24

約数和(自身を含む): 166761504

約数和(自身を除く): 88116884

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 38177, 76354, 152708, 190885, 381770, 763540, 3932231, 7864462, 15728924, 19661155, 39322310, 78644620]

約数ペア:

[(1, 78644620), (2, 39322310), (4, 19661155), (5, 15728924), (10, 7864462), (20, 3932231), (103, 763540), (206, 381770), (412, 190885), (515, 152708), (1030, 76354), (2060, 38177)]