28755080

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{3407}}^1$

素因数の和:3629

約数の個数: 32

約数和(自身を含む): 65024640

約数和(自身を除く): 36269560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 3407, 4220, 6814, 8440, 13628, 17035, 27256, 34070, 68140, 136280, 718877, 1437754, 2875508, 3594385, 5751016, 7188770, 14377540, 28755080]

約数ペア:

[(1, 28755080), (2, 14377540), (4, 7188770), (5, 5751016), (8, 3594385), (10, 2875508), (20, 1437754), (40, 718877), (211, 136280), (422, 68140), (844, 34070), (1055, 27256), (1688, 17035), (2110, 13628), (3407, 8440), (4220, 6814)]