198720179

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{307}}^1\times {\mathrm{1039}}^1$

素因数の和:1442

約数の個数: 16

約数和(自身を含む): 230630400

約数和(自身を除く): 31910221

約数列:

[1, 7, 89, 307, 623, 1039, 2149, 7273, 27323, 92471, 191261, 318973, 647297, 2232811, 28388597, 198720179]

約数ペア:

[(1, 198720179), (7, 28388597), (89, 2232811), (307, 647297), (623, 318973), (1039, 191261), (2149, 92471), (7273, 27323)]