90113480

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{5227}}^1$

素因数の和:5669

約数の個数: 32

約数和(自身を含む): 203264640

約数和(自身を除く): 113151160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 1724, 2155, 3448, 4310, 5227, 8620, 10454, 17240, 20908, 26135, 41816, 52270, 104540, 209080, 2252837, 4505674, 9011348, 11264185, 18022696, 22528370, 45056740, 90113480]

約数ペア:

[(1, 90113480), (2, 45056740), (4, 22528370), (5, 18022696), (8, 11264185), (10, 9011348), (20, 4505674), (40, 2252837), (431, 209080), (862, 104540), (1724, 52270), (2155, 41816), (3448, 26135), (4310, 20908), (5227, 17240), (8620, 10454)]