28393960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4409}}^1$

素因数の和:4450

約数の個数: 64

約数和(自身を含む): 76204800

約数和(自身を除く): 47810840

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, 3220, 4409, 6440, 8818, 17636, 22045, 30863, 35272, 44090, 61726, 88180, 101407, 123452, 154315, 176360, 202814, 246904, 308630, 405628, 507035, 617260, 709849, 811256, 1014070, 1234520, 1419698, 2028140, 2839396, 3549245, 4056280, 5678792, 7098490, 14196980, 28393960]

約数ペア:

[(1, 28393960), (2, 14196980), (4, 7098490), (5, 5678792), (7, 4056280), (8, 3549245), (10, 2839396), (14, 2028140), (20, 1419698), (23, 1234520), (28, 1014070), (35, 811256), (40, 709849), (46, 617260), (56, 507035), (70, 405628), (92, 308630), (115, 246904), (140, 202814), (161, 176360), (184, 154315), (230, 123452), (280, 101407), (322, 88180), (460, 61726), (644, 44090), (805, 35272), (920, 30863), (1288, 22045), (1610, 17636), (3220, 8818), (4409, 6440)]