20500660

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{15299}}^1$

素因数の和:15375

約数の個数: 24

約数和(自身を含む): 43696800

約数和(自身を除く): 23196140

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 15299, 30598, 61196, 76495, 152990, 305980, 1025033, 2050066, 4100132, 5125165, 10250330, 20500660]

約数ペア:

[(1, 20500660), (2, 10250330), (4, 5125165), (5, 4100132), (10, 2050066), (20, 1025033), (67, 305980), (134, 152990), (268, 76495), (335, 61196), (670, 30598), (1340, 15299)]