20675820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31327}}^1$

素因数の和:31350

約数の個数: 48

約数和(自身を含む): 63157248

約数和(自身を除く): 42481428

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 31327, 62654, 93981, 125308, 156635, 187962, 313270, 344597, 375924, 469905, 626540, 689194, 939810, 1033791, 1378388, 1722985, 1879620, 2067582, 3445970, 4135164, 5168955, 6891940, 10337910, 20675820]

約数ペア:

[(1, 20675820), (2, 10337910), (3, 6891940), (4, 5168955), (5, 4135164), (6, 3445970), (10, 2067582), (11, 1879620), (12, 1722985), (15, 1378388), (20, 1033791), (22, 939810), (30, 689194), (33, 626540), (44, 469905), (55, 375924), (60, 344597), (66, 313270), (110, 187962), (132, 156635), (165, 125308), (220, 93981), (330, 62654), (660, 31327)]