81311945

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{113723}}^1$

素因数の和:113752

約数の個数: 16

約数和(自身を含む): 114633792

約数和(自身を除く): 33321847

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 113723, 568615, 1250953, 1478399, 6254765, 7391995, 16262389, 81311945]

約数ペア:

[(1, 81311945), (5, 16262389), (11, 7391995), (13, 6254765), (55, 1478399), (65, 1250953), (143, 568615), (715, 113723)]