74887480

素因数分解:

$2^3\times 5^1\times {\mathrm{421}}^1\times {\mathrm{4447}}^1$

素因数の和:4879

約数の個数: 32

約数和(自身を含む): 168935040

約数和(自身を除く): 94047560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 421, 842, 1684, 2105, 3368, 4210, 4447, 8420, 8894, 16840, 17788, 22235, 35576, 44470, 88940, 177880, 1872187, 3744374, 7488748, 9360935, 14977496, 18721870, 37443740, 74887480]

約数ペア:

[(1, 74887480), (2, 37443740), (4, 18721870), (5, 14977496), (8, 9360935), (10, 7488748), (20, 3744374), (40, 1872187), (421, 177880), (842, 88940), (1684, 44470), (2105, 35576), (3368, 22235), (4210, 17788), (4447, 16840), (8420, 8894)]