199050920

素因数分解:

$2^3\times 5^1\times {\mathrm{457}}^1\times {\mathrm{10889}}^1$

素因数の和:11357

約数の個数: 32

約数和(自身を含む): 448885800

約数和(自身を除く): 249834880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 457, 914, 1828, 2285, 3656, 4570, 9140, 10889, 18280, 21778, 43556, 54445, 87112, 108890, 217780, 435560, 4976273, 9952546, 19905092, 24881365, 39810184, 49762730, 99525460, 199050920]

約数ペア:

[(1, 199050920), (2, 99525460), (4, 49762730), (5, 39810184), (8, 24881365), (10, 19905092), (20, 9952546), (40, 4976273), (457, 435560), (914, 217780), (1828, 108890), (2285, 87112), (3656, 54445), (4570, 43556), (9140, 21778), (10889, 18280)]