200774020

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{15661}}^1$

素因数の和:16311

約数の個数: 24

約数和(自身を含む): 422310168

約数和(自身を除く): 221536148

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2564, 3205, 6410, 12820, 15661, 31322, 62644, 78305, 156610, 313220, 10038701, 20077402, 40154804, 50193505, 100387010, 200774020]

約数ペア:

[(1, 200774020), (2, 100387010), (4, 50193505), (5, 40154804), (10, 20077402), (20, 10038701), (641, 313220), (1282, 156610), (2564, 78305), (3205, 62644), (6410, 31322), (12820, 15661)]