81351985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{113779}}^1$

素因数の和:113808

約数の個数: 16

約数和(自身を含む): 114690240

約数和(自身を除く): 33338255

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 113779, 568895, 1251569, 1479127, 6257845, 7395635, 16270397, 81351985]

約数ペア:

[(1, 81351985), (5, 16270397), (11, 7395635), (13, 6257845), (55, 1479127), (65, 1251569), (143, 568895), (715, 113779)]