90531440

素因数分解:

$2^4\times 5^1\times {\mathrm{1131643}}^1$

素因数の和:1131656

約数の個数: 20

約数和(自身を含む): 210485784

約数和(自身を除く): 119954344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1131643, 2263286, 4526572, 5658215, 9053144, 11316430, 18106288, 22632860, 45265720, 90531440]

約数ペア:

[(1, 90531440), (2, 45265720), (4, 22632860), (5, 18106288), (8, 11316430), (10, 9053144), (16, 5658215), (20, 4526572), (40, 2263286), (80, 1131643)]