1640642740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{89849}}^1$

素因数の和:89952

約数の個数: 48

約数和(自身を含む): 3803889600

約数和(自身を除く): 2163246860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 83, 110, 166, 220, 332, 415, 830, 913, 1660, 1826, 3652, 4565, 9130, 18260, 89849, 179698, 359396, 449245, 898490, 988339, 1796980, 1976678, 3953356, 4941695, 7457467, 9883390, 14914934, 19766780, 29829868, 37287335, 74574670, 82032137, 149149340, 164064274, 328128548, 410160685, 820321370, 1640642740]

約数ペア:

[(1, 1640642740), (2, 820321370), (4, 410160685), (5, 328128548), (10, 164064274), (11, 149149340), (20, 82032137), (22, 74574670), (44, 37287335), (55, 29829868), (83, 19766780), (110, 14914934), (166, 9883390), (220, 7457467), (332, 4941695), (415, 3953356), (830, 1976678), (913, 1796980), (1660, 988339), (1826, 898490), (3652, 449245), (4565, 359396), (9130, 179698), (18260, 89849)]