168169940

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{64187}}^1$

素因数の和:64327

約数の個数: 24

約数和(自身を含む): 355858272

約数和(自身を除く): 187688332

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 64187, 128374, 256748, 320935, 641870, 1283740, 8408497, 16816994, 33633988, 42042485, 84084970, 168169940]

約数ペア:

[(1, 168169940), (2, 84084970), (4, 42042485), (5, 33633988), (10, 16816994), (20, 8408497), (131, 1283740), (262, 641870), (524, 320935), (655, 256748), (1310, 128374), (2620, 64187)]