20171781640

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{2110019}}^1$

素因数の和:2110269

約数の個数: 32

約数和(自身を含む): 45576432000

約数和(自身を除く): 25404650360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2390, 4780, 9560, 2110019, 4220038, 8440076, 10550095, 16880152, 21100190, 42200380, 84400760, 504294541, 1008589082, 2017178164, 2521472705, 4034356328, 5042945410, 10085890820, 20171781640]

約数ペア:

[(1, 20171781640), (2, 10085890820), (4, 5042945410), (5, 4034356328), (8, 2521472705), (10, 2017178164), (20, 1008589082), (40, 504294541), (239, 84400760), (478, 42200380), (956, 21100190), (1195, 16880152), (1912, 10550095), (2390, 8440076), (4780, 4220038), (9560, 2110019)]