206514910

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{421459}}^1$

素因数の和:421480

約数の個数: 24

約数和(自身を含む): 432417960

約数和(自身を除く): 225903050

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 421459, 842918, 2107295, 2950213, 4214590, 5900426, 14751065, 20651491, 29502130, 41302982, 103257455, 206514910]

約数ペア:

[(1, 206514910), (2, 103257455), (5, 41302982), (7, 29502130), (10, 20651491), (14, 14751065), (35, 5900426), (49, 4214590), (70, 2950213), (98, 2107295), (245, 842918), (490, 421459)]