79712920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{284689}}^1$

素因数の和:284707

約数の個数: 32

約数和(自身を含む): 204976800

約数和(自身を除く): 125263880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 284689, 569378, 1138756, 1423445, 1992823, 2277512, 2846890, 3985646, 5693780, 7971292, 9964115, 11387560, 15942584, 19928230, 39856460, 79712920]

約数ペア:

[(1, 79712920), (2, 39856460), (4, 19928230), (5, 15942584), (7, 11387560), (8, 9964115), (10, 7971292), (14, 5693780), (20, 3985646), (28, 2846890), (35, 2277512), (40, 1992823), (56, 1423445), (70, 1138756), (140, 569378), (280, 284689)]