28002440

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{2251}}^1$

素因数の和:2573

約数の個数: 32

約数和(自身を含む): 63236160

約数和(自身を除く): 35233720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 1244, 1555, 2251, 2488, 3110, 4502, 6220, 9004, 11255, 12440, 18008, 22510, 45020, 90040, 700061, 1400122, 2800244, 3500305, 5600488, 7000610, 14001220, 28002440]

約数ペア:

[(1, 28002440), (2, 14001220), (4, 7000610), (5, 5600488), (8, 3500305), (10, 2800244), (20, 1400122), (40, 700061), (311, 90040), (622, 45020), (1244, 22510), (1555, 18008), (2251, 12440), (2488, 11255), (3110, 9004), (4502, 6220)]