81789955

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{54709}}^1$

素因数の和:54750

約数の個数: 16

約数和(自身を含む): 110295360

約数和(自身を除く): 28505405

約数列:

[1, 5, 13, 23, 65, 115, 299, 1495, 54709, 273545, 711217, 1258307, 3556085, 6291535, 16357991, 81789955]

約数ペア:

[(1, 81789955), (5, 16357991), (13, 6291535), (23, 3556085), (65, 1258307), (115, 711217), (299, 273545), (1495, 54709)]