64731560

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{10861}}^1$

素因数の和:11021

約数の個数: 32

約数和(自身を含む): 146637000

約数和(自身を除く): 81905440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 5960, 10861, 21722, 43444, 54305, 86888, 108610, 217220, 434440, 1618289, 3236578, 6473156, 8091445, 12946312, 16182890, 32365780, 64731560]

約数ペア:

[(1, 64731560), (2, 32365780), (4, 16182890), (5, 12946312), (8, 8091445), (10, 6473156), (20, 3236578), (40, 1618289), (149, 434440), (298, 217220), (596, 108610), (745, 86888), (1192, 54305), (1490, 43444), (2980, 21722), (5960, 10861)]