20476580

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{4079}}^1$

素因数の和:4339

約数の個数: 24

約数和(自身を含む): 43182720

約数和(自身を除く): 22706140

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 4079, 5020, 8158, 16316, 20395, 40790, 81580, 1023829, 2047658, 4095316, 5119145, 10238290, 20476580]

約数ペア:

[(1, 20476580), (2, 10238290), (4, 5119145), (5, 4095316), (10, 2047658), (20, 1023829), (251, 81580), (502, 40790), (1004, 20395), (1255, 16316), (2510, 8158), (4079, 5020)]