120405760

素因数分解:

$2^8\times 5^1\times {\mathrm{109}}^1\times {\mathrm{863}}^1$

素因数の和:993

約数の個数: 72

約数和(自身を含む): 291392640

約数和(自身を除く): 170986880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 218, 256, 320, 436, 545, 640, 863, 872, 1090, 1280, 1726, 1744, 2180, 3452, 3488, 4315, 4360, 6904, 6976, 8630, 8720, 13808, 13952, 17260, 17440, 27616, 27904, 34520, 34880, 55232, 69040, 69760, 94067, 110464, 138080, 139520, 188134, 220928, 276160, 376268, 470335, 552320, 752536, 940670, 1104640, 1505072, 1881340, 3010144, 3762680, 6020288, 7525360, 12040576, 15050720, 24081152, 30101440, 60202880, 120405760]

約数ペア:

[(1, 120405760), (2, 60202880), (4, 30101440), (5, 24081152), (8, 15050720), (10, 12040576), (16, 7525360), (20, 6020288), (32, 3762680), (40, 3010144), (64, 1881340), (80, 1505072), (109, 1104640), (128, 940670), (160, 752536), (218, 552320), (256, 470335), (320, 376268), (436, 276160), (545, 220928), (640, 188134), (863, 139520), (872, 138080), (1090, 110464), (1280, 94067), (1726, 69760), (1744, 69040), (2180, 55232), (3452, 34880), (3488, 34520), (4315, 27904), (4360, 27616), (6904, 17440), (6976, 17260), (8630, 13952), (8720, 13808)]