1640700215

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{797}}^1\times {\mathrm{5347}}^1$

素因数の和:6167

約数の個数: 32

約数和(自身を含む): 2458197504

約数和(自身を除く): 817497289

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 797, 3985, 5347, 5579, 8767, 26735, 27895, 37429, 43835, 58817, 61369, 187145, 294085, 306845, 411719, 2058595, 4261559, 21307795, 29830913, 46877149, 149154565, 234385745, 328140043, 1640700215]

約数ペア:

[(1, 1640700215), (5, 328140043), (7, 234385745), (11, 149154565), (35, 46877149), (55, 29830913), (77, 21307795), (385, 4261559), (797, 2058595), (3985, 411719), (5347, 306845), (5579, 294085), (8767, 187145), (26735, 61369), (27895, 58817), (37429, 43835)]