51877640

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{12841}}^1$

素因数の和:12953

約数の個数: 32

約数和(自身を含む): 117889560

約数和(自身を除く): 66011920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 12841, 25682, 51364, 64205, 102728, 128410, 256820, 513640, 1296941, 2593882, 5187764, 6484705, 10375528, 12969410, 25938820, 51877640]

約数ペア:

[(1, 51877640), (2, 25938820), (4, 12969410), (5, 10375528), (8, 6484705), (10, 5187764), (20, 2593882), (40, 1296941), (101, 513640), (202, 256820), (404, 128410), (505, 102728), (808, 64205), (1010, 51364), (2020, 25682), (4040, 12841)]