28640865

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{7547}}^1$

素因数の和:7589

約数の個数: 32

約数和(自身を含む): 52171776

約数和(自身を除く): 23530911

約数列:

[1, 3, 5, 11, 15, 23, 33, 55, 69, 115, 165, 253, 345, 759, 1265, 3795, 7547, 22641, 37735, 83017, 113205, 173581, 249051, 415085, 520743, 867905, 1245255, 1909391, 2603715, 5728173, 9546955, 28640865]

約数ペア:

[(1, 28640865), (3, 9546955), (5, 5728173), (11, 2603715), (15, 1909391), (23, 1245255), (33, 867905), (55, 520743), (69, 415085), (115, 249051), (165, 173581), (253, 113205), (345, 83017), (759, 37735), (1265, 22641), (3795, 7547)]