306940

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:261

約数の個数: 24

約数和(自身を含む): 655200

約数和(自身を除く): 348260

約数列:

[1, 2, 4, 5, 10, 20, 103, 149, 206, 298, 412, 515, 596, 745, 1030, 1490, 2060, 2980, 15347, 30694, 61388, 76735, 153470, 306940]

約数ペア:

[(1, 306940), (2, 153470), (4, 76735), (5, 61388), (10, 30694), (20, 15347), (103, 2980), (149, 2060), (206, 1490), (298, 1030), (412, 745), (515, 596)]