164420920

素因数分解:

$2^3\times 5^1\times {\mathrm{719}}^1\times {\mathrm{5717}}^1$

素因数の和:6447

約数の個数: 32

約数和(自身を含む): 370526400

約数和(自身を除く): 206105480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 719, 1438, 2876, 3595, 5717, 5752, 7190, 11434, 14380, 22868, 28585, 28760, 45736, 57170, 114340, 228680, 4110523, 8221046, 16442092, 20552615, 32884184, 41105230, 82210460, 164420920]

約数ペア:

[(1, 164420920), (2, 82210460), (4, 41105230), (5, 32884184), (8, 20552615), (10, 16442092), (20, 8221046), (40, 4110523), (719, 228680), (1438, 114340), (2876, 57170), (3595, 45736), (5717, 28760), (5752, 28585), (7190, 22868), (11434, 14380)]