7668920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{449}}^1$

素因数の和:528

約数の個数: 64

約数和(自身を含む): 20088000

約数和(自身を除く): 12419080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 61, 70, 122, 140, 244, 280, 305, 427, 449, 488, 610, 854, 898, 1220, 1708, 1796, 2135, 2245, 2440, 3143, 3416, 3592, 4270, 4490, 6286, 8540, 8980, 12572, 15715, 17080, 17960, 25144, 27389, 31430, 54778, 62860, 109556, 125720, 136945, 191723, 219112, 273890, 383446, 547780, 766892, 958615, 1095560, 1533784, 1917230, 3834460, 7668920]

約数ペア:

[(1, 7668920), (2, 3834460), (4, 1917230), (5, 1533784), (7, 1095560), (8, 958615), (10, 766892), (14, 547780), (20, 383446), (28, 273890), (35, 219112), (40, 191723), (56, 136945), (61, 125720), (70, 109556), (122, 62860), (140, 54778), (244, 31430), (280, 27389), (305, 25144), (427, 17960), (449, 17080), (488, 15715), (610, 12572), (854, 8980), (898, 8540), (1220, 6286), (1708, 4490), (1796, 4270), (2135, 3592), (2245, 3416), (2440, 3143)]