64507580

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{6569}}^1$

素因数の和:7069

約数の個数: 24

約数和(自身を含む): 135762480

約数和(自身を除く): 71254900

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 4910, 6569, 9820, 13138, 26276, 32845, 65690, 131380, 3225379, 6450758, 12901516, 16126895, 32253790, 64507580]

約数ペア:

[(1, 64507580), (2, 32253790), (4, 16126895), (5, 12901516), (10, 6450758), (20, 3225379), (491, 131380), (982, 65690), (1964, 32845), (2455, 26276), (4910, 13138), (6569, 9820)]