393460

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{191}}^1$

素因数の和:303

約数の個数: 24

約数和(自身を含む): 838656

約数和(自身を除く): 445196

約数列:

[1, 2, 4, 5, 10, 20, 103, 191, 206, 382, 412, 515, 764, 955, 1030, 1910, 2060, 3820, 19673, 39346, 78692, 98365, 196730, 393460]

約数ペア:

[(1, 393460), (2, 196730), (4, 98365), (5, 78692), (10, 39346), (20, 19673), (103, 3820), (191, 2060), (206, 1910), (382, 1030), (412, 955), (515, 764)]