128316460

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1\times {\mathrm{457}}^1$

素因数の和:706

約数の個数: 48

約数和(自身を含む): 274690080

約数和(自身を除く): 146373620

約数列:

[1, 2, 4, 5, 10, 20, 101, 139, 202, 278, 404, 457, 505, 556, 695, 914, 1010, 1390, 1828, 2020, 2285, 2780, 4570, 9140, 14039, 28078, 46157, 56156, 63523, 70195, 92314, 127046, 140390, 184628, 230785, 254092, 280780, 317615, 461570, 635230, 923140, 1270460, 6415823, 12831646, 25663292, 32079115, 64158230, 128316460]

約数ペア:

[(1, 128316460), (2, 64158230), (4, 32079115), (5, 25663292), (10, 12831646), (20, 6415823), (101, 1270460), (139, 923140), (202, 635230), (278, 461570), (404, 317615), (457, 280780), (505, 254092), (556, 230785), (695, 184628), (914, 140390), (1010, 127046), (1390, 92314), (1828, 70195), (2020, 63523), (2285, 56156), (2780, 46157), (4570, 28078), (9140, 14039)]