28528089320

素因数分解:

$2^3\times 5^1\times {\mathrm{21013}}^1\times {\mathrm{33941}}^1$

素因数の和:54965

約数の個数: 32

約数和(自身を含む): 64193146920

約数和(自身を除く): 35665057600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 21013, 33941, 42026, 67882, 84052, 105065, 135764, 168104, 169705, 210130, 271528, 339410, 420260, 678820, 840520, 1357640, 713202233, 1426404466, 2852808932, 3566011165, 5705617864, 7132022330, 14264044660, 28528089320]

約数ペア:

[(1, 28528089320), (2, 14264044660), (4, 7132022330), (5, 5705617864), (8, 3566011165), (10, 2852808932), (20, 1426404466), (40, 713202233), (21013, 1357640), (33941, 840520), (42026, 678820), (67882, 420260), (84052, 339410), (105065, 271528), (135764, 210130), (168104, 169705)]