20312900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{10691}}^1$

素因数の和:10724

約数の個数: 36

約数和(自身を含む): 46403280

約数和(自身を除く): 26090380

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 10691, 21382, 42764, 53455, 106910, 203129, 213820, 267275, 406258, 534550, 812516, 1015645, 1069100, 2031290, 4062580, 5078225, 10156450, 20312900]

約数ペア:

[(1, 20312900), (2, 10156450), (4, 5078225), (5, 4062580), (10, 2031290), (19, 1069100), (20, 1015645), (25, 812516), (38, 534550), (50, 406258), (76, 267275), (95, 213820), (100, 203129), (190, 106910), (380, 53455), (475, 42764), (950, 21382), (1900, 10691)]