20863480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47417}}^1$

素因数の和:47439

約数の個数: 32

約数和(自身を含む): 51211440

約数和(自身を除く): 30347960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 47417, 94834, 189668, 237085, 379336, 474170, 521587, 948340, 1043174, 1896680, 2086348, 2607935, 4172696, 5215870, 10431740, 20863480]

約数ペア:

[(1, 20863480), (2, 10431740), (4, 5215870), (5, 4172696), (8, 2607935), (10, 2086348), (11, 1896680), (20, 1043174), (22, 948340), (40, 521587), (44, 474170), (55, 379336), (88, 237085), (110, 189668), (220, 94834), (440, 47417)]