12796280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1987}}^1$

素因数の和:2028

約数の個数: 64

約数和(自身を含む): 34352640

約数和(自身を除く): 21556360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 1987, 3220, 3974, 6440, 7948, 9935, 13909, 15896, 19870, 27818, 39740, 45701, 55636, 69545, 79480, 91402, 111272, 139090, 182804, 228505, 278180, 319907, 365608, 457010, 556360, 639814, 914020, 1279628, 1599535, 1828040, 2559256, 3199070, 6398140, 12796280]

約数ペア:

[(1, 12796280), (2, 6398140), (4, 3199070), (5, 2559256), (7, 1828040), (8, 1599535), (10, 1279628), (14, 914020), (20, 639814), (23, 556360), (28, 457010), (35, 365608), (40, 319907), (46, 278180), (56, 228505), (70, 182804), (92, 139090), (115, 111272), (140, 91402), (161, 79480), (184, 69545), (230, 55636), (280, 45701), (322, 39740), (460, 27818), (644, 19870), (805, 15896), (920, 13909), (1288, 9935), (1610, 7948), (1987, 6440), (3220, 3974)]