55188890

素因数分解:

$2^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{13109}}^1$

素因数の和:13537

約数の個数: 16

約数和(自身を含む): 99583560

約数和(自身を除く): 44394670

約数列:

[1, 2, 5, 10, 421, 842, 2105, 4210, 13109, 26218, 65545, 131090, 5518889, 11037778, 27594445, 55188890]

約数ペア:

[(1, 55188890), (2, 27594445), (5, 11037778), (10, 5518889), (421, 131090), (842, 65545), (2105, 26218), (4210, 13109)]