28785440

素因数分解:

$2^5\times 5^1\times {\mathrm{179909}}^1$

素因数の和:179924

約数の個数: 24

約数和(自身を含む): 68005980

約数和(自身を除く): 39220540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 179909, 359818, 719636, 899545, 1439272, 1799090, 2878544, 3598180, 5757088, 7196360, 14392720, 28785440]

約数ペア:

[(1, 28785440), (2, 14392720), (4, 7196360), (5, 5757088), (8, 3598180), (10, 2878544), (16, 1799090), (20, 1439272), (32, 899545), (40, 719636), (80, 359818), (160, 179909)]