7988680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{277}}^1$

素因数の和:398

約数の個数: 64

約数和(自身を含む): 20816640

約数和(自身を除く): 12827960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 103, 140, 206, 277, 280, 412, 515, 554, 721, 824, 1030, 1108, 1385, 1442, 1939, 2060, 2216, 2770, 2884, 3605, 3878, 4120, 5540, 5768, 7210, 7756, 9695, 11080, 14420, 15512, 19390, 28531, 28840, 38780, 57062, 77560, 114124, 142655, 199717, 228248, 285310, 399434, 570620, 798868, 998585, 1141240, 1597736, 1997170, 3994340, 7988680]

約数ペア:

[(1, 7988680), (2, 3994340), (4, 1997170), (5, 1597736), (7, 1141240), (8, 998585), (10, 798868), (14, 570620), (20, 399434), (28, 285310), (35, 228248), (40, 199717), (56, 142655), (70, 114124), (103, 77560), (140, 57062), (206, 38780), (277, 28840), (280, 28531), (412, 19390), (515, 15512), (554, 14420), (721, 11080), (824, 9695), (1030, 7756), (1108, 7210), (1385, 5768), (1442, 5540), (1939, 4120), (2060, 3878), (2216, 3605), (2770, 2884)]