28998890

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{70729}}^1$

素因数の和:70777

約数の個数: 16

約数和(自身を含む): 53471880

約数和(自身を除く): 24472990

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 70729, 141458, 353645, 707290, 2899889, 5799778, 14499445, 28998890]

約数ペア:

[(1, 28998890), (2, 14499445), (5, 5799778), (10, 2899889), (41, 707290), (82, 353645), (205, 141458), (410, 70729)]