1270460

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{457}}^1$

素因数の和:605

約数の個数: 24

約数和(自身を含む): 2693040

約数和(自身を除く): 1422580

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 457, 556, 695, 914, 1390, 1828, 2285, 2780, 4570, 9140, 63523, 127046, 254092, 317615, 635230, 1270460]

約数ペア:

[(1, 1270460), (2, 635230), (4, 317615), (5, 254092), (10, 127046), (20, 63523), (139, 9140), (278, 4570), (457, 2780), (556, 2285), (695, 1828), (914, 1390)]