20541740

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{19379}}^1$

素因数の和:19441

約数の個数: 24

約数和(自身を含む): 43953840

約数和(自身を除く): 23412100

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 19379, 38758, 77516, 96895, 193790, 387580, 1027087, 2054174, 4108348, 5135435, 10270870, 20541740]

約数ペア:

[(1, 20541740), (2, 10270870), (4, 5135435), (5, 4108348), (10, 2054174), (20, 1027087), (53, 387580), (106, 193790), (212, 96895), (265, 77516), (530, 38758), (1060, 19379)]