405128659

素因数分解:

${\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{449}}^1$

素因数の和:775

約数の個数: 24

約数和(自身を含む): 464454000

約数和(自身を除く): 59325341

約数列:

[1, 13, 19, 169, 247, 281, 449, 3211, 3653, 5339, 5837, 8531, 47489, 69407, 75881, 110903, 126169, 902291, 1441739, 1640197, 2397211, 21322561, 31163743, 405128659]

約数ペア:

[(1, 405128659), (13, 31163743), (19, 21322561), (169, 2397211), (247, 1640197), (281, 1441739), (449, 902291), (3211, 126169), (3653, 110903), (5339, 75881), (5837, 69407), (8531, 47489)]