81231172

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{157}}^1\times {\mathrm{1069}}^1$

素因数の和:1252

約数の個数: 36

約数和(自身を含む): 157394860

約数和(自身を除く): 76163688

約数列:

[1, 2, 4, 11, 22, 44, 121, 157, 242, 314, 484, 628, 1069, 1727, 2138, 3454, 4276, 6908, 11759, 18997, 23518, 37994, 47036, 75988, 129349, 167833, 258698, 335666, 517396, 671332, 1846163, 3692326, 7384652, 20307793, 40615586, 81231172]

約数ペア:

[(1, 81231172), (2, 40615586), (4, 20307793), (11, 7384652), (22, 3692326), (44, 1846163), (121, 671332), (157, 517396), (242, 335666), (314, 258698), (484, 167833), (628, 129349), (1069, 75988), (1727, 47036), (2138, 37994), (3454, 23518), (4276, 18997), (6908, 11759)]