210301720

素因数分解:

$2^3\times 5^1\times {\mathrm{1361}}^1\times {\mathrm{3863}}^1$

素因数の和:5235

約数の個数: 32

約数和(自身を含む): 473649120

約数和(自身を除く): 263347400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1361, 2722, 3863, 5444, 6805, 7726, 10888, 13610, 15452, 19315, 27220, 30904, 38630, 54440, 77260, 154520, 5257543, 10515086, 21030172, 26287715, 42060344, 52575430, 105150860, 210301720]

約数ペア:

[(1, 210301720), (2, 105150860), (4, 52575430), (5, 42060344), (8, 26287715), (10, 21030172), (20, 10515086), (40, 5257543), (1361, 154520), (2722, 77260), (3863, 54440), (5444, 38630), (6805, 30904), (7726, 27220), (10888, 19315), (13610, 15452)]