90810800

素因数分解:

$2^4\times 5^2\times {\mathrm{227027}}^1$

素因数の和:227045

約数の個数: 30

約数和(自身を含む): 218173908

約数和(自身を除く): 127363108

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 227027, 454054, 908108, 1135135, 1816216, 2270270, 3632432, 4540540, 5675675, 9081080, 11351350, 18162160, 22702700, 45405400, 90810800]

約数ペア:

[(1, 90810800), (2, 45405400), (4, 22702700), (5, 18162160), (8, 11351350), (10, 9081080), (16, 5675675), (20, 4540540), (25, 3632432), (40, 2270270), (50, 1816216), (80, 1135135), (100, 908108), (200, 454054), (400, 227027)]