20115500

素因数分解:

$2^2\times 5^3\times {\mathrm{40231}}^1$

素因数の和:40250

約数の個数: 24

約数和(自身を含む): 43933344

約数和(自身を除く): 23817844

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 40231, 80462, 160924, 201155, 402310, 804620, 1005775, 2011550, 4023100, 5028875, 10057750, 20115500]

約数ペア:

[(1, 20115500), (2, 10057750), (4, 5028875), (5, 4023100), (10, 2011550), (20, 1005775), (25, 804620), (50, 402310), (100, 201155), (125, 160924), (250, 80462), (500, 40231)]