64732520

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{4637}}^1$

素因数の和:4997

約数の個数: 32

約数和(自身を含む): 146097000

約数和(自身を除く): 81364480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 698, 1396, 1745, 2792, 3490, 4637, 6980, 9274, 13960, 18548, 23185, 37096, 46370, 92740, 185480, 1618313, 3236626, 6473252, 8091565, 12946504, 16183130, 32366260, 64732520]

約数ペア:

[(1, 64732520), (2, 32366260), (4, 16183130), (5, 12946504), (8, 8091565), (10, 6473252), (20, 3236626), (40, 1618313), (349, 185480), (698, 92740), (1396, 46370), (1745, 37096), (2792, 23185), (3490, 18548), (4637, 13960), (6980, 9274)]