5280781960

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3219989}}^1$

素因数の和:3220041

約数の個数: 32

約数和(自身を含む): 12171562200

約数和(自身を除く): 6890780240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 3219989, 6439978, 12879956, 16099945, 25759912, 32199890, 64399780, 128799560, 132019549, 264039098, 528078196, 660097745, 1056156392, 1320195490, 2640390980, 5280781960]

約数ペア:

[(1, 5280781960), (2, 2640390980), (4, 1320195490), (5, 1056156392), (8, 660097745), (10, 528078196), (20, 264039098), (40, 132019549), (41, 128799560), (82, 64399780), (164, 32199890), (205, 25759912), (328, 16099945), (410, 12879956), (820, 6439978), (1640, 3219989)]