20512860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{11789}}^1$

素因数の和:11830

約数の個数: 48

約数和(自身を含む): 59421600

約数和(自身を除く): 38908740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 116, 145, 174, 290, 348, 435, 580, 870, 1740, 11789, 23578, 35367, 47156, 58945, 70734, 117890, 141468, 176835, 235780, 341881, 353670, 683762, 707340, 1025643, 1367524, 1709405, 2051286, 3418810, 4102572, 5128215, 6837620, 10256430, 20512860]

約数ペア:

[(1, 20512860), (2, 10256430), (3, 6837620), (4, 5128215), (5, 4102572), (6, 3418810), (10, 2051286), (12, 1709405), (15, 1367524), (20, 1025643), (29, 707340), (30, 683762), (58, 353670), (60, 341881), (87, 235780), (116, 176835), (145, 141468), (174, 117890), (290, 70734), (348, 58945), (435, 47156), (580, 35367), (870, 23578), (1740, 11789)]