266520280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{547}}^1\times {\mathrm{937}}^1$

素因数の和:1508

約数の個数: 64

約数和(自身を含む): 647670240

約数和(自身を除く): 381149960

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 547, 937, 1094, 1874, 2188, 2735, 3748, 4376, 4685, 5470, 7111, 7496, 9370, 10940, 12181, 14222, 18740, 21880, 24362, 28444, 35555, 37480, 48724, 56888, 60905, 71110, 97448, 121810, 142220, 243620, 284440, 487240, 512539, 1025078, 2050156, 2562695, 4100312, 5125390, 6663007, 10250780, 13326014, 20501560, 26652028, 33315035, 53304056, 66630070, 133260140, 266520280]

約数ペア:

[(1, 266520280), (2, 133260140), (4, 66630070), (5, 53304056), (8, 33315035), (10, 26652028), (13, 20501560), (20, 13326014), (26, 10250780), (40, 6663007), (52, 5125390), (65, 4100312), (104, 2562695), (130, 2050156), (260, 1025078), (520, 512539), (547, 487240), (937, 284440), (1094, 243620), (1874, 142220), (2188, 121810), (2735, 97448), (3748, 71110), (4376, 60905), (4685, 56888), (5470, 48724), (7111, 37480), (7496, 35555), (9370, 28444), (10940, 24362), (12181, 21880), (14222, 18740)]