68421895

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{12659}}^1$

素因数の和:12734

約数の個数: 16

約数和(自身を含む): 87505920

約数和(自身を除く): 19084025

約数列:

[1, 5, 23, 47, 115, 235, 1081, 5405, 12659, 63295, 291157, 594973, 1455785, 2974865, 13684379, 68421895]

約数ペア:

[(1, 68421895), (5, 13684379), (23, 2974865), (47, 1455785), (115, 594973), (235, 291157), (1081, 63295), (5405, 12659)]