20885725

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{5189}}^1$

素因数の和:5229

約数の個数: 24

約数和(自身を含む): 30890880

約数和(自身を除く): 10005155

約数列:

[1, 5, 7, 23, 25, 35, 115, 161, 175, 575, 805, 4025, 5189, 25945, 36323, 119347, 129725, 181615, 596735, 835429, 908075, 2983675, 4177145, 20885725]

約数ペア:

[(1, 20885725), (5, 4177145), (7, 2983675), (23, 908075), (25, 835429), (35, 596735), (115, 181615), (161, 129725), (175, 119347), (575, 36323), (805, 25945), (4025, 5189)]