4155280

素因数分解:

$2^4\times 5^1\times {\mathrm{51941}}^1$

素因数の和:51954

約数の個数: 20

約数和(自身を含む): 9661212

約数和(自身を除く): 5505932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 51941, 103882, 207764, 259705, 415528, 519410, 831056, 1038820, 2077640, 4155280]

約数ペア:

[(1, 4155280), (2, 2077640), (4, 1038820), (5, 831056), (8, 519410), (10, 415528), (16, 259705), (20, 207764), (40, 103882), (80, 51941)]