6640472

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{311}}^1$

素因数の和:491

約数の個数: 32

約数和(自身を含む): 13309920

約数和(自身を除く): 6669448

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 157, 311, 314, 622, 628, 1244, 1256, 2488, 2669, 5287, 5338, 10574, 10676, 21148, 21352, 42296, 48827, 97654, 195308, 390616, 830059, 1660118, 3320236, 6640472]

約数ペア:

[(1, 6640472), (2, 3320236), (4, 1660118), (8, 830059), (17, 390616), (34, 195308), (68, 97654), (136, 48827), (157, 42296), (311, 21352), (314, 21148), (622, 10676), (628, 10574), (1244, 5338), (1256, 5287), (2488, 2669)]