31215856

素因数分解:

$2^4\times 7^1\times {\mathrm{109}}^1\times {\mathrm{2557}}^1$

素因数の和:2681

約数の個数: 40

約数和(自身を含む): 69782240

約数和(自身を除く): 38566384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 109, 112, 218, 436, 763, 872, 1526, 1744, 2557, 3052, 5114, 6104, 10228, 12208, 17899, 20456, 35798, 40912, 71596, 143192, 278713, 286384, 557426, 1114852, 1950991, 2229704, 3901982, 4459408, 7803964, 15607928, 31215856]

約数ペア:

[(1, 31215856), (2, 15607928), (4, 7803964), (7, 4459408), (8, 3901982), (14, 2229704), (16, 1950991), (28, 1114852), (56, 557426), (109, 286384), (112, 278713), (218, 143192), (436, 71596), (763, 40912), (872, 35798), (1526, 20456), (1744, 17899), (2557, 12208), (3052, 10228), (5114, 6104)]