90571120

素因数分解:

$2^4\times 5^1\times {\mathrm{1132139}}^1$

素因数の和:1132152

約数の個数: 20

約数和(自身を含む): 210578040

約数和(自身を除く): 120006920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1132139, 2264278, 4528556, 5660695, 9057112, 11321390, 18114224, 22642780, 45285560, 90571120]

約数ペア:

[(1, 90571120), (2, 45285560), (4, 22642780), (5, 18114224), (8, 11321390), (10, 9057112), (16, 5660695), (20, 4528556), (40, 2264278), (80, 1132139)]