20543510

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{4271}}^1$

素因数の和:4328

約数の個数: 32

約数和(自身を含む): 40908672

約数和(自身を除く): 20365162

約数列:

[1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 370, 481, 962, 2405, 4271, 4810, 8542, 21355, 42710, 55523, 111046, 158027, 277615, 316054, 555230, 790135, 1580270, 2054351, 4108702, 10271755, 20543510]

約数ペア:

[(1, 20543510), (2, 10271755), (5, 4108702), (10, 2054351), (13, 1580270), (26, 790135), (37, 555230), (65, 316054), (74, 277615), (130, 158027), (185, 111046), (370, 55523), (481, 42710), (962, 21355), (2405, 8542), (4271, 4810)]