204080709160

素因数分解:

$2^3\times 5^1\times {\mathrm{5102017729}}^1$

素因数の和:5102017740

約数の個数: 16

約数和(自身を含む): 459181595700

約数和(自身を除く): 255100886540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5102017729, 10204035458, 20408070916, 25510088645, 40816141832, 51020177290, 102040354580, 204080709160]

約数ペア:

[(1, 204080709160), (2, 102040354580), (4, 51020177290), (5, 40816141832), (8, 25510088645), (10, 20408070916), (20, 10204035458), (40, 5102017729)]