28668880

素因数分解:

$2^4\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1607}}^1$

素因数の和:1843

約数の個数: 40

約数和(自身を含む): 66995712

約数和(自身を除く): 38326832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 223, 446, 892, 1115, 1607, 1784, 2230, 3214, 3568, 4460, 6428, 8035, 8920, 12856, 16070, 17840, 25712, 32140, 64280, 128560, 358361, 716722, 1433444, 1791805, 2866888, 3583610, 5733776, 7167220, 14334440, 28668880]

約数ペア:

[(1, 28668880), (2, 14334440), (4, 7167220), (5, 5733776), (8, 3583610), (10, 2866888), (16, 1791805), (20, 1433444), (40, 716722), (80, 358361), (223, 128560), (446, 64280), (892, 32140), (1115, 25712), (1607, 17840), (1784, 16070), (2230, 12856), (3214, 8920), (3568, 8035), (4460, 6428)]