1645295610

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{1987}}^1\times {\mathrm{3943}}^1$

素因数の和:5947

約数の個数: 64

約数和(自身を含む): 4516227072

約数和(自身を除く): 2870931462

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 1987, 3943, 3974, 5961, 7886, 9935, 11829, 11922, 13909, 19715, 19870, 23658, 27601, 27818, 29805, 39430, 41727, 55202, 59145, 59610, 69545, 82803, 83454, 118290, 138005, 139090, 165606, 208635, 276010, 414015, 417270, 828030, 7834741, 15669482, 23504223, 39173705, 47008446, 54843187, 78347410, 109686374, 117521115, 164529561, 235042230, 274215935, 329059122, 548431870, 822647805, 1645295610]

約数ペア:

[(1, 1645295610), (2, 822647805), (3, 548431870), (5, 329059122), (6, 274215935), (7, 235042230), (10, 164529561), (14, 117521115), (15, 109686374), (21, 78347410), (30, 54843187), (35, 47008446), (42, 39173705), (70, 23504223), (105, 15669482), (210, 7834741), (1987, 828030), (3943, 417270), (3974, 414015), (5961, 276010), (7886, 208635), (9935, 165606), (11829, 139090), (11922, 138005), (13909, 118290), (19715, 83454), (19870, 82803), (23658, 69545), (27601, 59610), (27818, 59145), (29805, 55202), (39430, 41727)]