280110020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{5927}}^1$

素因数の和:6092

約数の個数: 48

約数和(自身を含む): 627419520

約数和(自身を除く): 347309500

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 139, 170, 278, 340, 556, 695, 1390, 2363, 2780, 4726, 5927, 9452, 11815, 11854, 23630, 23708, 29635, 47260, 59270, 100759, 118540, 201518, 403036, 503795, 823853, 1007590, 1647706, 2015180, 3295412, 4119265, 8238530, 14005501, 16477060, 28011002, 56022004, 70027505, 140055010, 280110020]

約数ペア:

[(1, 280110020), (2, 140055010), (4, 70027505), (5, 56022004), (10, 28011002), (17, 16477060), (20, 14005501), (34, 8238530), (68, 4119265), (85, 3295412), (139, 2015180), (170, 1647706), (278, 1007590), (340, 823853), (556, 503795), (695, 403036), (1390, 201518), (2363, 118540), (2780, 100759), (4726, 59270), (5927, 47260), (9452, 29635), (11815, 23708), (11854, 23630)]