42624640

素因数分解:

$2^7\times 5^1\times {\mathrm{66601}}^1$

素因数の和:66620

約数の個数: 32

約数和(自身を含む): 101901060

約数和(自身を除く): 59276420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 66601, 133202, 266404, 333005, 532808, 666010, 1065616, 1332020, 2131232, 2664040, 4262464, 5328080, 8524928, 10656160, 21312320, 42624640]

約数ペア:

[(1, 42624640), (2, 21312320), (4, 10656160), (5, 8524928), (8, 5328080), (10, 4262464), (16, 2664040), (20, 2131232), (32, 1332020), (40, 1065616), (64, 666010), (80, 532808), (128, 333005), (160, 266404), (320, 133202), (640, 66601)]