198011620

素因数分解:

$2^2\times 5^1\times {\mathrm{1277}}^1\times {\mathrm{7753}}^1$

素因数の和:9039

約数の個数: 24

約数和(自身を含む): 416203704

約数和(自身を除く): 218192084

約数列:

[1, 2, 4, 5, 10, 20, 1277, 2554, 5108, 6385, 7753, 12770, 15506, 25540, 31012, 38765, 77530, 155060, 9900581, 19801162, 39602324, 49502905, 99005810, 198011620]

約数ペア:

[(1, 198011620), (2, 99005810), (4, 49502905), (5, 39602324), (10, 19801162), (20, 9900581), (1277, 155060), (2554, 77530), (5108, 38765), (6385, 31012), (7753, 25540), (12770, 15506)]