28184440

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{11551}}^1$

素因数の和:11623

約数の個数: 32

約数和(自身を含む): 64460160

約数和(自身を除く): 36275720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 11551, 23102, 46204, 57755, 92408, 115510, 231020, 462040, 704611, 1409222, 2818444, 3523055, 5636888, 7046110, 14092220, 28184440]

約数ペア:

[(1, 28184440), (2, 14092220), (4, 7046110), (5, 5636888), (8, 3523055), (10, 2818444), (20, 1409222), (40, 704611), (61, 462040), (122, 231020), (244, 115510), (305, 92408), (488, 57755), (610, 46204), (1220, 23102), (2440, 11551)]