125640820

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{40013}}^1$

素因数の和:40179

約数の個数: 24

約数和(自身を含む): 265532904

約数和(自身を除く): 139892084

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 40013, 80026, 160052, 200065, 400130, 800260, 6282041, 12564082, 25128164, 31410205, 62820410, 125640820]

約数ペア:

[(1, 125640820), (2, 62820410), (4, 31410205), (5, 25128164), (10, 12564082), (20, 6282041), (157, 800260), (314, 400130), (628, 200065), (785, 160052), (1570, 80026), (3140, 40013)]