30855220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{1009}}^1$

素因数の和:1168

約数の個数: 48

約数和(自身を含む): 71265600

約数和(自身を除く): 40410380

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 139, 220, 278, 556, 695, 1009, 1390, 1529, 2018, 2780, 3058, 4036, 5045, 6116, 7645, 10090, 11099, 15290, 20180, 22198, 30580, 44396, 55495, 110990, 140251, 221980, 280502, 561004, 701255, 1402510, 1542761, 2805020, 3085522, 6171044, 7713805, 15427610, 30855220]

約数ペア:

[(1, 30855220), (2, 15427610), (4, 7713805), (5, 6171044), (10, 3085522), (11, 2805020), (20, 1542761), (22, 1402510), (44, 701255), (55, 561004), (110, 280502), (139, 221980), (220, 140251), (278, 110990), (556, 55495), (695, 44396), (1009, 30580), (1390, 22198), (1529, 20180), (2018, 15290), (2780, 11099), (3058, 10090), (4036, 7645), (5045, 6116)]