1222265

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{313}}^1$

素因数の和:400

約数の個数: 16

約数和(自身を含む): 1627776

約数和(自身を除く): 405511

約数列:

[1, 5, 11, 55, 71, 313, 355, 781, 1565, 3443, 3905, 17215, 22223, 111115, 244453, 1222265]

約数ペア:

[(1, 1222265), (5, 244453), (11, 111115), (55, 22223), (71, 17215), (313, 3905), (355, 3443), (781, 1565)]