90209360

素因数分解:

$2^4\times 5^1\times {\mathrm{1127617}}^1$

素因数の和:1127630

約数の個数: 20

約数和(自身を含む): 209736948

約数和(自身を除く): 119527588

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1127617, 2255234, 4510468, 5638085, 9020936, 11276170, 18041872, 22552340, 45104680, 90209360]

約数ペア:

[(1, 90209360), (2, 45104680), (4, 22552340), (5, 18041872), (8, 11276170), (10, 9020936), (16, 5638085), (20, 4510468), (40, 2255234), (80, 1127617)]