20814025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1511}}^1$

素因数の和:1569

約数の個数: 24

約数和(自身を含む): 28123200

約数和(自身を除く): 7309175

約数列:

[1, 5, 19, 25, 29, 95, 145, 475, 551, 725, 1511, 2755, 7555, 13775, 28709, 37775, 43819, 143545, 219095, 717725, 832561, 1095475, 4162805, 20814025]

約数ペア:

[(1, 20814025), (5, 4162805), (19, 1095475), (25, 832561), (29, 717725), (95, 219095), (145, 143545), (475, 43819), (551, 37775), (725, 28709), (1511, 13775), (2755, 7555)]