15206920

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{3691}}^1$

素因数の和:3805

約数の個数: 32

約数和(自身を含む): 34557120

約数和(自身を除く): 19350200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 3691, 4120, 7382, 14764, 18455, 29528, 36910, 73820, 147640, 380173, 760346, 1520692, 1900865, 3041384, 3801730, 7603460, 15206920]

約数ペア:

[(1, 15206920), (2, 7603460), (4, 3801730), (5, 3041384), (8, 1900865), (10, 1520692), (20, 760346), (40, 380173), (103, 147640), (206, 73820), (412, 36910), (515, 29528), (824, 18455), (1030, 14764), (2060, 7382), (3691, 4120)]