18789820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{134213}}^1$

素因数の和:134229

約数の個数: 24

約数和(自身を含む): 45095904

約数和(自身を除く): 26306084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 134213, 268426, 536852, 671065, 939491, 1342130, 1878982, 2684260, 3757964, 4697455, 9394910, 18789820]

約数ペア:

[(1, 18789820), (2, 9394910), (4, 4697455), (5, 3757964), (7, 2684260), (10, 1878982), (14, 1342130), (20, 939491), (28, 671065), (35, 536852), (70, 268426), (140, 134213)]