139479920

素因数分解:

$2^4\times 5^1\times {\mathrm{881}}^1\times {\mathrm{1979}}^1$

素因数の和:2873

約数の個数: 40

約数和(自身を含む): 324822960

約数和(自身を除く): 185343040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 881, 1762, 1979, 3524, 3958, 4405, 7048, 7916, 8810, 9895, 14096, 15832, 17620, 19790, 31664, 35240, 39580, 70480, 79160, 158320, 1743499, 3486998, 6973996, 8717495, 13947992, 17434990, 27895984, 34869980, 69739960, 139479920]

約数ペア:

[(1, 139479920), (2, 69739960), (4, 34869980), (5, 27895984), (8, 17434990), (10, 13947992), (16, 8717495), (20, 6973996), (40, 3486998), (80, 1743499), (881, 158320), (1762, 79160), (1979, 70480), (3524, 39580), (3958, 35240), (4405, 31664), (7048, 19790), (7916, 17620), (8810, 15832), (9895, 14096)]