90716720

素因数分解:

$2^4\times 5^1\times {\mathrm{1133959}}^1$

素因数の和:1133972

約数の個数: 20

約数和(自身を含む): 210916560

約数和(自身を除く): 120199840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1133959, 2267918, 4535836, 5669795, 9071672, 11339590, 18143344, 22679180, 45358360, 90716720]

約数ペア:

[(1, 90716720), (2, 45358360), (4, 22679180), (5, 18143344), (8, 11339590), (10, 9071672), (16, 5669795), (20, 4535836), (40, 2267918), (80, 1133959)]