128457890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1167799}}^1$

素因数の和:1167817

約数の個数: 16

約数和(自身を含む): 252244800

約数和(自身を除く): 123786910

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 1167799, 2335598, 5838995, 11677990, 12845789, 25691578, 64228945, 128457890]

約数ペア:

[(1, 128457890), (2, 64228945), (5, 25691578), (10, 12845789), (11, 11677990), (22, 5838995), (55, 2335598), (110, 1167799)]