430180

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:303

約数の個数: 24

約数和(自身を含む): 915768

約数和(自身を除く): 485588

約数列:

[1, 2, 4, 5, 10, 20, 137, 157, 274, 314, 548, 628, 685, 785, 1370, 1570, 2740, 3140, 21509, 43018, 86036, 107545, 215090, 430180]

約数ペア:

[(1, 430180), (2, 215090), (4, 107545), (5, 86036), (10, 43018), (20, 21509), (137, 3140), (157, 2740), (274, 1570), (314, 1370), (548, 785), (628, 685)]