81146956

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{389}}^1\times {\mathrm{431}}^1$

素因数の和:846

約数の個数: 36

約数和(自身を含む): 156854880

約数和(自身を除く): 75707924

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 389, 431, 484, 778, 862, 1556, 1724, 4279, 4741, 8558, 9482, 17116, 18964, 47069, 52151, 94138, 104302, 167659, 188276, 208604, 335318, 670636, 1844249, 3688498, 7376996, 20286739, 40573478, 81146956]

約数ペア:

[(1, 81146956), (2, 40573478), (4, 20286739), (11, 7376996), (22, 3688498), (44, 1844249), (121, 670636), (242, 335318), (389, 208604), (431, 188276), (484, 167659), (778, 104302), (862, 94138), (1556, 52151), (1724, 47069), (4279, 18964), (4741, 17116), (8558, 9482)]