20099275

素因数分解:

$5^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2671}}^1$

素因数の和:2731

約数の個数: 24

約数和(自身を含む): 29156864

約数和(自身を除く): 9057589

約数列:

[1, 5, 7, 25, 35, 43, 175, 215, 301, 1075, 1505, 2671, 7525, 13355, 18697, 66775, 93485, 114853, 467425, 574265, 803971, 2871325, 4019855, 20099275]

約数ペア:

[(1, 20099275), (5, 4019855), (7, 2871325), (25, 803971), (35, 574265), (43, 467425), (175, 114853), (215, 93485), (301, 66775), (1075, 18697), (1505, 13355), (2671, 7525)]