79939120

素因数分解:

$2^4\times 5^1\times {\mathrm{999239}}^1$

素因数の和:999252

約数の個数: 20

約数和(自身を含む): 185858640

約数和(自身を除く): 105919520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 999239, 1998478, 3996956, 4996195, 7993912, 9992390, 15987824, 19984780, 39969560, 79939120]

約数ペア:

[(1, 79939120), (2, 39969560), (4, 19984780), (5, 15987824), (8, 9992390), (10, 7993912), (16, 4996195), (20, 3996956), (40, 1998478), (80, 999239)]