20801244

素因数分解:

$2^2\times 3^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 49920416

約数和(自身を除く): 29119172

約数列:

[1, 2, 3, 4, 6, 12, 61, 122, 157, 181, 183, 244, 314, 362, 366, 471, 543, 628, 724, 732, 942, 1086, 1884, 2172, 9577, 11041, 19154, 22082, 28417, 28731, 33123, 38308, 44164, 56834, 57462, 66246, 85251, 113668, 114924, 132492, 170502, 341004, 1733437, 3466874, 5200311, 6933748, 10400622, 20801244]

約数ペア:

[(1, 20801244), (2, 10400622), (3, 6933748), (4, 5200311), (6, 3466874), (12, 1733437), (61, 341004), (122, 170502), (157, 132492), (181, 114924), (183, 113668), (244, 85251), (314, 66246), (362, 57462), (366, 56834), (471, 44164), (543, 38308), (628, 33123), (724, 28731), (732, 28417), (942, 22082), (1086, 19154), (1884, 11041), (2172, 9577)]