1617758920

素因数分解:

$2^3\times 5^1\times {\mathrm{2087}}^1\times {\mathrm{19379}}^1$

素因数の和:21477

約数の個数: 32

約数和(自身を含む): 3641889600

約数和(自身を除く): 2024130680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2087, 4174, 8348, 10435, 16696, 19379, 20870, 38758, 41740, 77516, 83480, 96895, 155032, 193790, 387580, 775160, 40443973, 80887946, 161775892, 202219865, 323551784, 404439730, 808879460, 1617758920]

約数ペア:

[(1, 1617758920), (2, 808879460), (4, 404439730), (5, 323551784), (8, 202219865), (10, 161775892), (20, 80887946), (40, 40443973), (2087, 775160), (4174, 387580), (8348, 193790), (10435, 155032), (16696, 96895), (19379, 83480), (20870, 77516), (38758, 41740)]