123904640

素因数分解:

$2^7\times 5^1\times {\mathrm{193601}}^1$

素因数の和:193620

約数の個数: 32

約数和(自身を含む): 296211060

約数和(自身を除く): 172306420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 193601, 387202, 774404, 968005, 1548808, 1936010, 3097616, 3872020, 6195232, 7744040, 12390464, 15488080, 24780928, 30976160, 61952320, 123904640]

約数ペア:

[(1, 123904640), (2, 61952320), (4, 30976160), (5, 24780928), (8, 15488080), (10, 12390464), (16, 7744040), (20, 6195232), (32, 3872020), (40, 3097616), (64, 1936010), (80, 1548808), (128, 968005), (160, 774404), (320, 387202), (640, 193601)]