20765325

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1069}}^1$

素因数の和:1126

約数の個数: 48

約数和(自身を含む): 40334720

約数和(自身を除く): 19569395

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 37, 75, 105, 111, 175, 185, 259, 525, 555, 777, 925, 1069, 1295, 2775, 3207, 3885, 5345, 6475, 7483, 16035, 19425, 22449, 26725, 37415, 39553, 80175, 112245, 118659, 187075, 197765, 276871, 561225, 593295, 830613, 988825, 1384355, 2966475, 4153065, 6921775, 20765325]

約数ペア:

[(1, 20765325), (3, 6921775), (5, 4153065), (7, 2966475), (15, 1384355), (21, 988825), (25, 830613), (35, 593295), (37, 561225), (75, 276871), (105, 197765), (111, 187075), (175, 118659), (185, 112245), (259, 80175), (525, 39553), (555, 37415), (777, 26725), (925, 22449), (1069, 19425), (1295, 16035), (2775, 7483), (3207, 6475), (3885, 5345)]