64253480

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{3727}}^1$

素因数の和:4169

約数の個数: 32

約数和(自身を含む): 144944640

約数和(自身を除く): 80691160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 1724, 2155, 3448, 3727, 4310, 7454, 8620, 14908, 17240, 18635, 29816, 37270, 74540, 149080, 1606337, 3212674, 6425348, 8031685, 12850696, 16063370, 32126740, 64253480]

約数ペア:

[(1, 64253480), (2, 32126740), (4, 16063370), (5, 12850696), (8, 8031685), (10, 6425348), (20, 3212674), (40, 1606337), (431, 149080), (862, 74540), (1724, 37270), (2155, 29816), (3448, 18635), (3727, 17240), (4310, 14908), (7454, 8620)]