251011305

素因数分解:

$3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{26947}}^1$

素因数の和:26987

約数の個数: 40

約数和(自身を含む): 469541952

約数和(自身を除く): 218530647

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 81, 115, 135, 207, 345, 405, 621, 1035, 1863, 3105, 9315, 26947, 80841, 134735, 242523, 404205, 619781, 727569, 1212615, 1859343, 2182707, 3098905, 3637845, 5578029, 9296715, 10913535, 16734087, 27890145, 50202261, 83670435, 251011305]

約数ペア:

[(1, 251011305), (3, 83670435), (5, 50202261), (9, 27890145), (15, 16734087), (23, 10913535), (27, 9296715), (45, 5578029), (69, 3637845), (81, 3098905), (115, 2182707), (135, 1859343), (207, 1212615), (345, 727569), (405, 619781), (621, 404205), (1035, 242523), (1863, 134735), (3105, 80841), (9315, 26947)]