20820810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{4993}}^1$

素因数の和:5142

約数の個数: 32

約数和(自身を含む): 50339520

約数和(自身を除く): 29518710

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 139, 278, 417, 695, 834, 1390, 2085, 4170, 4993, 9986, 14979, 24965, 29958, 49930, 74895, 149790, 694027, 1388054, 2082081, 3470135, 4164162, 6940270, 10410405, 20820810]

約数ペア:

[(1, 20820810), (2, 10410405), (3, 6940270), (5, 4164162), (6, 3470135), (10, 2082081), (15, 1388054), (30, 694027), (139, 149790), (278, 74895), (417, 49930), (695, 29958), (834, 24965), (1390, 14979), (2085, 9986), (4170, 4993)]