20790440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47251}}^1$

素因数の和:47273

約数の個数: 32

約数和(自身を含む): 51032160

約数和(自身を除く): 30241720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 47251, 94502, 189004, 236255, 378008, 472510, 519761, 945020, 1039522, 1890040, 2079044, 2598805, 4158088, 5197610, 10395220, 20790440]

約数ペア:

[(1, 20790440), (2, 10395220), (4, 5197610), (5, 4158088), (8, 2598805), (10, 2079044), (11, 1890040), (20, 1039522), (22, 945020), (40, 519761), (44, 472510), (55, 378008), (88, 236255), (110, 189004), (220, 94502), (440, 47251)]