1390840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1$

素因数の和:160

約数の個数: 64

約数和(自身を含む): 3564000

約数和(自身を除く): 2173160

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 29, 40, 44, 55, 58, 88, 109, 110, 116, 145, 218, 220, 232, 290, 319, 436, 440, 545, 580, 638, 872, 1090, 1160, 1199, 1276, 1595, 2180, 2398, 2552, 3161, 3190, 4360, 4796, 5995, 6322, 6380, 9592, 11990, 12644, 12760, 15805, 23980, 25288, 31610, 34771, 47960, 63220, 69542, 126440, 139084, 173855, 278168, 347710, 695420, 1390840]

約数ペア:

[(1, 1390840), (2, 695420), (4, 347710), (5, 278168), (8, 173855), (10, 139084), (11, 126440), (20, 69542), (22, 63220), (29, 47960), (40, 34771), (44, 31610), (55, 25288), (58, 23980), (88, 15805), (109, 12760), (110, 12644), (116, 11990), (145, 9592), (218, 6380), (220, 6322), (232, 5995), (290, 4796), (319, 4360), (436, 3190), (440, 3161), (545, 2552), (580, 2398), (638, 2180), (872, 1595), (1090, 1276), (1160, 1199)]