28678825

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{5651}}^1$

素因数の和:5697

約数の個数: 24

約数和(自身を含む): 42050880

約数和(自身を除く): 13372055

約数列:

[1, 5, 7, 25, 29, 35, 145, 175, 203, 725, 1015, 5075, 5651, 28255, 39557, 141275, 163879, 197785, 819395, 988925, 1147153, 4096975, 5735765, 28678825]

約数ペア:

[(1, 28678825), (5, 5735765), (7, 4096975), (25, 1147153), (29, 988925), (35, 819395), (145, 197785), (175, 163879), (203, 141275), (725, 39557), (1015, 28255), (5075, 5651)]