28858120

素因数分解:

$2^3\times 5^1\times {\mathrm{743}}^1\times {\mathrm{971}}^1$

素因数の和:1725

約数の個数: 32

約数和(自身を含む): 65085120

約数和(自身を除く): 36227000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 743, 971, 1486, 1942, 2972, 3715, 3884, 4855, 5944, 7430, 7768, 9710, 14860, 19420, 29720, 38840, 721453, 1442906, 2885812, 3607265, 5771624, 7214530, 14429060, 28858120]

約数ペア:

[(1, 28858120), (2, 14429060), (4, 7214530), (5, 5771624), (8, 3607265), (10, 2885812), (20, 1442906), (40, 721453), (743, 38840), (971, 29720), (1486, 19420), (1942, 14860), (2972, 9710), (3715, 7768), (3884, 7430), (4855, 5944)]