28720370

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{58613}}^1$

素因数の和:58634

約数の個数: 24

約数和(自身を含む): 60137964

約数和(自身を除く): 31417594

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 58613, 117226, 293065, 410291, 586130, 820582, 2051455, 2872037, 4102910, 5744074, 14360185, 28720370]

約数ペア:

[(1, 28720370), (2, 14360185), (5, 5744074), (7, 4102910), (10, 2872037), (14, 2051455), (35, 820582), (49, 586130), (70, 410291), (98, 293065), (245, 117226), (490, 58613)]