18757960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36073}}^1$

素因数の和:36097

約数の個数: 32

約数和(自身を含む): 45453240

約数和(自身を除く): 26695280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 36073, 72146, 144292, 180365, 288584, 360730, 468949, 721460, 937898, 1442920, 1875796, 2344745, 3751592, 4689490, 9378980, 18757960]

約数ペア:

[(1, 18757960), (2, 9378980), (4, 4689490), (5, 3751592), (8, 2344745), (10, 1875796), (13, 1442920), (20, 937898), (26, 721460), (40, 468949), (52, 360730), (65, 288584), (104, 180365), (130, 144292), (260, 72146), (520, 36073)]