640415864

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{13757}}^1$

素因数の和:13820

約数の個数: 48

約数和(自身を含む): 1369471320

約数和(自身を除く): 729055456

約数列:

[1, 2, 4, 8, 11, 22, 23, 44, 46, 88, 92, 184, 253, 506, 529, 1012, 1058, 2024, 2116, 4232, 5819, 11638, 13757, 23276, 27514, 46552, 55028, 110056, 151327, 302654, 316411, 605308, 632822, 1210616, 1265644, 2531288, 3480521, 6961042, 7277453, 13922084, 14554906, 27844168, 29109812, 58219624, 80051983, 160103966, 320207932, 640415864]

約数ペア:

[(1, 640415864), (2, 320207932), (4, 160103966), (8, 80051983), (11, 58219624), (22, 29109812), (23, 27844168), (44, 14554906), (46, 13922084), (88, 7277453), (92, 6961042), (184, 3480521), (253, 2531288), (506, 1265644), (529, 1210616), (1012, 632822), (1058, 605308), (2024, 316411), (2116, 302654), (4232, 151327), (5819, 110056), (11638, 55028), (13757, 46552), (23276, 27514)]