285425840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{509689}}^1$

素因数の和:509709

約数の個数: 40

約数和(自身を含む): 758418720

約数和(自身を除く): 472992880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 509689, 1019378, 2038756, 2548445, 3567823, 4077512, 5096890, 7135646, 8155024, 10193780, 14271292, 17839115, 20387560, 28542584, 35678230, 40775120, 57085168, 71356460, 142712920, 285425840]

約数ペア:

[(1, 285425840), (2, 142712920), (4, 71356460), (5, 57085168), (7, 40775120), (8, 35678230), (10, 28542584), (14, 20387560), (16, 17839115), (20, 14271292), (28, 10193780), (35, 8155024), (40, 7135646), (56, 5096890), (70, 4077512), (80, 3567823), (112, 2548445), (140, 2038756), (280, 1019378), (560, 509689)]