66640810

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{65981}}^1$

素因数の和:66089

約数の個数: 16

約数和(自身を含む): 121142952

約数和(自身を除く): 54502142

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 65981, 131962, 329905, 659810, 6664081, 13328162, 33320405, 66640810]

約数ペア:

[(1, 66640810), (2, 33320405), (5, 13328162), (10, 6664081), (101, 659810), (202, 329905), (505, 131962), (1010, 65981)]