39988880

素因数分解:

$2^4\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1597}}^1$

素因数の和:1923

約数の個数: 40

約数和(自身を含む): 93329592

約数和(自身を除く): 53340712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 313, 626, 1252, 1565, 1597, 2504, 3130, 3194, 5008, 6260, 6388, 7985, 12520, 12776, 15970, 25040, 25552, 31940, 63880, 127760, 499861, 999722, 1999444, 2499305, 3998888, 4998610, 7997776, 9997220, 19994440, 39988880]

約数ペア:

[(1, 39988880), (2, 19994440), (4, 9997220), (5, 7997776), (8, 4998610), (10, 3998888), (16, 2499305), (20, 1999444), (40, 999722), (80, 499861), (313, 127760), (626, 63880), (1252, 31940), (1565, 25552), (1597, 25040), (2504, 15970), (3130, 12776), (3194, 12520), (5008, 7985), (6260, 6388)]