90878879

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{229}}^1$

素因数の和:352

約数の個数: 32

約数和(自身を含む): 115920000

約数和(自身を除く): 25041121

約数列:

[1, 7, 13, 49, 89, 91, 229, 343, 623, 637, 1157, 1603, 2977, 4361, 4459, 8099, 11221, 20381, 20839, 30527, 56693, 78547, 142667, 145873, 264953, 396851, 998669, 1021111, 1854671, 6990683, 12982697, 90878879]

約数ペア:

[(1, 90878879), (7, 12982697), (13, 6990683), (49, 1854671), (89, 1021111), (91, 998669), (229, 396851), (343, 264953), (623, 145873), (637, 142667), (1157, 78547), (1603, 56693), (2977, 30527), (4361, 20839), (4459, 20381), (8099, 11221)]