81042225

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{4271}}^1$

素因数の和:4318

約数の個数: 48

約数和(自身を含む): 152561664

約数和(自身を除く): 71519439

約数列:

[1, 3, 5, 11, 15, 23, 25, 33, 55, 69, 75, 115, 165, 253, 275, 345, 575, 759, 825, 1265, 1725, 3795, 4271, 6325, 12813, 18975, 21355, 46981, 64065, 98233, 106775, 140943, 234905, 294699, 320325, 491165, 704715, 1080563, 1174525, 1473495, 2455825, 3241689, 3523575, 5402815, 7367475, 16208445, 27014075, 81042225]

約数ペア:

[(1, 81042225), (3, 27014075), (5, 16208445), (11, 7367475), (15, 5402815), (23, 3523575), (25, 3241689), (33, 2455825), (55, 1473495), (69, 1174525), (75, 1080563), (115, 704715), (165, 491165), (253, 320325), (275, 294699), (345, 234905), (575, 140943), (759, 106775), (825, 98233), (1265, 64065), (1725, 46981), (3795, 21355), (4271, 18975), (6325, 12813)]