20340395

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{2131}}^1$

素因数の和:2242

約数の個数: 16

約数和(自身を含む): 25788672

約数和(自身を除く): 5448277

約数列:

[1, 5, 23, 83, 115, 415, 1909, 2131, 9545, 10655, 49013, 176873, 245065, 884365, 4068079, 20340395]

約数ペア:

[(1, 20340395), (5, 4068079), (23, 884365), (83, 245065), (115, 176873), (415, 49013), (1909, 10655), (2131, 9545)]