20078345

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{277}}^1$

素因数の和:417

約数の個数: 32

約数和(自身を含む): 29356800

約数和(自身を除く): 9278455

約数列:

[1, 5, 7, 19, 35, 95, 109, 133, 277, 545, 665, 763, 1385, 1939, 2071, 3815, 5263, 9695, 10355, 14497, 26315, 30193, 36841, 72485, 150965, 184205, 211351, 573667, 1056755, 2868335, 4015669, 20078345]

約数ペア:

[(1, 20078345), (5, 4015669), (7, 2868335), (19, 1056755), (35, 573667), (95, 211351), (109, 184205), (133, 150965), (277, 72485), (545, 36841), (665, 30193), (763, 26315), (1385, 14497), (1939, 10355), (2071, 9695), (3815, 5263)]