28941880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{65777}}^1$

素因数の和:65799

約数の個数: 32

約数和(自身を含む): 71040240

約数和(自身を除く): 42098360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 65777, 131554, 263108, 328885, 526216, 657770, 723547, 1315540, 1447094, 2631080, 2894188, 3617735, 5788376, 7235470, 14470940, 28941880]

約数ペア:

[(1, 28941880), (2, 14470940), (4, 7235470), (5, 5788376), (8, 3617735), (10, 2894188), (11, 2631080), (20, 1447094), (22, 1315540), (40, 723547), (44, 657770), (55, 526216), (88, 328885), (110, 263108), (220, 131554), (440, 65777)]