12868505

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:285

約数の個数: 24

約数和(自身を含む): 17001432

約数和(自身を除く): 4132927

約数列:

[1, 5, 13, 65, 97, 157, 169, 485, 785, 845, 1261, 2041, 6305, 10205, 15229, 16393, 26533, 76145, 81965, 132665, 197977, 989885, 2573701, 12868505]

約数ペア:

[(1, 12868505), (5, 2573701), (13, 989885), (65, 197977), (97, 132665), (157, 81965), (169, 76145), (485, 26533), (785, 16393), (845, 15229), (1261, 10205), (2041, 6305)]