81416452

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{19819}}^1$

素因数の和:19915

約数の個数: 24

約数和(自身を含む): 155388800

約数和(自身を除く): 73972348

約数列:

[1, 2, 4, 13, 26, 52, 79, 158, 316, 1027, 2054, 4108, 19819, 39638, 79276, 257647, 515294, 1030588, 1565701, 3131402, 6262804, 20354113, 40708226, 81416452]

約数ペア:

[(1, 81416452), (2, 40708226), (4, 20354113), (13, 6262804), (26, 3131402), (52, 1565701), (79, 1030588), (158, 515294), (316, 257647), (1027, 79276), (2054, 39638), (4108, 19819)]