28713080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{65257}}^1$

素因数の和:65279

約数の個数: 32

約数和(自身を含む): 70478640

約数和(自身を除く): 41765560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 65257, 130514, 261028, 326285, 522056, 652570, 717827, 1305140, 1435654, 2610280, 2871308, 3589135, 5742616, 7178270, 14356540, 28713080]

約数ペア:

[(1, 28713080), (2, 14356540), (4, 7178270), (5, 5742616), (8, 3589135), (10, 2871308), (11, 2610280), (20, 1435654), (22, 1305140), (40, 717827), (44, 652570), (55, 522056), (88, 326285), (110, 261028), (220, 130514), (440, 65257)]