19872680

素因数分解:

$2^3\times 5^1\times {\mathrm{496817}}^1$

素因数の和:496828

約数の個数: 16

約数和(自身を含む): 44713620

約数和(自身を除く): 24840940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 496817, 993634, 1987268, 2484085, 3974536, 4968170, 9936340, 19872680]

約数ペア:

[(1, 19872680), (2, 9936340), (4, 4968170), (5, 3974536), (8, 2484085), (10, 1987268), (20, 993634), (40, 496817)]