12578920

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{2939}}^1$

素因数の和:3057

約数の個数: 32

約数和(自身を含む): 28576800

約数和(自身を除く): 15997880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 2939, 4280, 5878, 11756, 14695, 23512, 29390, 58780, 117560, 314473, 628946, 1257892, 1572365, 2515784, 3144730, 6289460, 12578920]

約数ペア:

[(1, 12578920), (2, 6289460), (4, 3144730), (5, 2515784), (8, 1572365), (10, 1257892), (20, 628946), (40, 314473), (107, 117560), (214, 58780), (428, 29390), (535, 23512), (856, 14695), (1070, 11756), (2140, 5878), (2939, 4280)]