168921775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1571}}^1$

素因数の和:1632

約数の個数: 48

約数和(自身を含む): 252626688

約数和(自身を除く): 83704913

約数列:

[1, 5, 11, 17, 23, 25, 55, 85, 115, 187, 253, 275, 391, 425, 575, 935, 1265, 1571, 1955, 4301, 4675, 6325, 7855, 9775, 17281, 21505, 26707, 36133, 39275, 86405, 107525, 133535, 180665, 293777, 397463, 432025, 614261, 667675, 903325, 1468885, 1987315, 3071305, 6756871, 7344425, 9936575, 15356525, 33784355, 168921775]

約数ペア:

[(1, 168921775), (5, 33784355), (11, 15356525), (17, 9936575), (23, 7344425), (25, 6756871), (55, 3071305), (85, 1987315), (115, 1468885), (187, 903325), (253, 667675), (275, 614261), (391, 432025), (425, 397463), (575, 293777), (935, 180665), (1265, 133535), (1571, 107525), (1955, 86405), (4301, 39275), (4675, 36133), (6325, 26707), (7855, 21505), (9775, 17281)]