71238920

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{17291}}^1$

素因数の和:17405

約数の個数: 32

約数和(自身を含む): 161853120

約数和(自身を除く): 90614200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 17291, 34582, 69164, 86455, 138328, 172910, 345820, 691640, 1780973, 3561946, 7123892, 8904865, 14247784, 17809730, 35619460, 71238920]

約数ペア:

[(1, 71238920), (2, 35619460), (4, 17809730), (5, 14247784), (8, 8904865), (10, 7123892), (20, 3561946), (40, 1780973), (103, 691640), (206, 345820), (412, 172910), (515, 138328), (824, 86455), (1030, 69164), (2060, 34582), (4120, 17291)]