20572048

素因数分解:

$2^4\times 7^1\times {\mathrm{83}}^1\times {\mathrm{2213}}^1$

素因数の和:2311

約数の個数: 40

約数和(自身を含む): 46122048

約数和(自身を除く): 25550000

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 83, 112, 166, 332, 581, 664, 1162, 1328, 2213, 2324, 4426, 4648, 8852, 9296, 15491, 17704, 30982, 35408, 61964, 123928, 183679, 247856, 367358, 734716, 1285753, 1469432, 2571506, 2938864, 5143012, 10286024, 20572048]

約数ペア:

[(1, 20572048), (2, 10286024), (4, 5143012), (7, 2938864), (8, 2571506), (14, 1469432), (16, 1285753), (28, 734716), (56, 367358), (83, 247856), (112, 183679), (166, 123928), (332, 61964), (581, 35408), (664, 30982), (1162, 17704), (1328, 15491), (2213, 9296), (2324, 8852), (4426, 4648)]