209868130

素因数分解:

$2^1\times 5^1\times {\mathrm{491}}^1\times {\mathrm{42743}}^1$

素因数の和:43241

約数の個数: 16

約数和(自身を含む): 378540864

約数和(自身を除く): 168672734

約数列:

[1, 2, 5, 10, 491, 982, 2455, 4910, 42743, 85486, 213715, 427430, 20986813, 41973626, 104934065, 209868130]

約数ペア:

[(1, 209868130), (2, 104934065), (5, 41973626), (10, 20986813), (491, 427430), (982, 213715), (2455, 85486), (4910, 42743)]