28920220565

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{173}}^1\times {\mathrm{929}}^1$

素因数の和:1226

約数の個数: 64

約数和(自身を含む): 38797963200

約数和(自身を除く): 9877742635

約数列:

[1, 5, 17, 29, 73, 85, 145, 173, 365, 493, 865, 929, 1241, 2117, 2465, 2941, 4645, 5017, 6205, 10585, 12629, 14705, 15793, 25085, 26941, 35989, 63145, 67817, 78965, 85289, 134705, 160717, 179945, 214693, 339085, 366241, 426445, 457997, 803585, 1073465, 1152889, 1831205, 1966693, 2289985, 2732189, 4660793, 5764445, 6226097, 9833465, 11732341, 13660945, 23303965, 31130485, 33433781, 58661705, 79233481, 167168905, 199449797, 340237889, 396167405, 997248985, 1701189445, 5784044113, 28920220565]

約数ペア:

[(1, 28920220565), (5, 5784044113), (17, 1701189445), (29, 997248985), (73, 396167405), (85, 340237889), (145, 199449797), (173, 167168905), (365, 79233481), (493, 58661705), (865, 33433781), (929, 31130485), (1241, 23303965), (2117, 13660945), (2465, 11732341), (2941, 9833465), (4645, 6226097), (5017, 5764445), (6205, 4660793), (10585, 2732189), (12629, 2289985), (14705, 1966693), (15793, 1831205), (25085, 1152889), (26941, 1073465), (35989, 803585), (63145, 457997), (67817, 426445), (78965, 366241), (85289, 339085), (134705, 214693), (160717, 179945)]