18912760

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{7057}}^1$

素因数の和:7135

約数の個数: 32

約数和(自身を含む): 43194960

約数和(自身を除く): 24282200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 7057, 14114, 28228, 35285, 56456, 70570, 141140, 282280, 472819, 945638, 1891276, 2364095, 3782552, 4728190, 9456380, 18912760]

約数ペア:

[(1, 18912760), (2, 9456380), (4, 4728190), (5, 3782552), (8, 2364095), (10, 1891276), (20, 945638), (40, 472819), (67, 282280), (134, 141140), (268, 70570), (335, 56456), (536, 35285), (670, 28228), (1340, 14114), (2680, 7057)]