323420

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:269

約数の個数: 24

約数和(自身を含む): 690144

約数和(自身を除く): 366724

約数列:

[1, 2, 4, 5, 10, 20, 103, 157, 206, 314, 412, 515, 628, 785, 1030, 1570, 2060, 3140, 16171, 32342, 64684, 80855, 161710, 323420]

約数ペア:

[(1, 323420), (2, 161710), (4, 80855), (5, 64684), (10, 32342), (20, 16171), (103, 3140), (157, 2060), (206, 1570), (314, 1030), (412, 785), (515, 628)]