20165825

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2063}}^1$

素因数の和:2113

約数の個数: 24

約数和(自身を含む): 27641088

約数和(自身を除く): 7475263

約数列:

[1, 5, 17, 23, 25, 85, 115, 391, 425, 575, 1955, 2063, 9775, 10315, 35071, 47449, 51575, 175355, 237245, 806633, 876775, 1186225, 4033165, 20165825]

約数ペア:

[(1, 20165825), (5, 4033165), (17, 1186225), (23, 876775), (25, 806633), (85, 237245), (115, 175355), (391, 51575), (425, 47449), (575, 35071), (1955, 10315), (2063, 9775)]