20157798

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^2\times {\mathrm{79}}^1$

素因数の和:193

約数の個数: 48

約数和(自身を含む): 43614720

約数和(自身を除く): 23456922

約数列:

[1, 2, 3, 6, 23, 43, 46, 69, 79, 86, 129, 138, 158, 237, 258, 474, 989, 1817, 1849, 1978, 2967, 3397, 3634, 3698, 5451, 5547, 5934, 6794, 10191, 10902, 11094, 20382, 42527, 78131, 85054, 127581, 146071, 156262, 234393, 255162, 292142, 438213, 468786, 876426, 3359633, 6719266, 10078899, 20157798]

約数ペア:

[(1, 20157798), (2, 10078899), (3, 6719266), (6, 3359633), (23, 876426), (43, 468786), (46, 438213), (69, 292142), (79, 255162), (86, 234393), (129, 156262), (138, 146071), (158, 127581), (237, 85054), (258, 78131), (474, 42527), (989, 20382), (1817, 11094), (1849, 10902), (1978, 10191), (2967, 6794), (3397, 5934), (3634, 5547), (3698, 5451)]