20306125

素因数分解:

$5^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1009}}^1$

素因数の和:1054

約数の個数: 32

約数和(自身を含む): 30251520

約数和(自身を除く): 9945395

約数列:

[1, 5, 7, 23, 25, 35, 115, 125, 161, 175, 575, 805, 875, 1009, 2875, 4025, 5045, 7063, 20125, 23207, 25225, 35315, 116035, 126125, 162449, 176575, 580175, 812245, 882875, 2900875, 4061225, 20306125]

約数ペア:

[(1, 20306125), (5, 4061225), (7, 2900875), (23, 882875), (25, 812245), (35, 580175), (115, 176575), (125, 162449), (161, 126125), (175, 116035), (575, 35315), (805, 25225), (875, 23207), (1009, 20125), (2875, 7063), (4025, 5045)]