85710820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{329657}}^1$

素因数の和:329679

約数の個数: 24

約数和(自身を含む): 193838904

約数和(自身を除く): 108128084

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 329657, 659314, 1318628, 1648285, 3296570, 4285541, 6593140, 8571082, 17142164, 21427705, 42855410, 85710820]

約数ペア:

[(1, 85710820), (2, 42855410), (4, 21427705), (5, 17142164), (10, 8571082), (13, 6593140), (20, 4285541), (26, 3296570), (52, 1648285), (65, 1318628), (130, 659314), (260, 329657)]