128943647

素因数分解:

$7^3\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{173}}^1$

素因数の和:288

約数の個数: 32

約数和(自身を含む): 157852800

約数和(自身を除く): 28909153

約数列:

[1, 7, 41, 49, 53, 173, 287, 343, 371, 1211, 2009, 2173, 2597, 7093, 8477, 9169, 14063, 15211, 18179, 49651, 59339, 64183, 106477, 347557, 375929, 449281, 745339, 2432899, 2631503, 3144967, 18420521, 128943647]

約数ペア:

[(1, 128943647), (7, 18420521), (41, 3144967), (49, 2631503), (53, 2432899), (173, 745339), (287, 449281), (343, 375929), (371, 347557), (1211, 106477), (2009, 64183), (2173, 59339), (2597, 49651), (7093, 18179), (8477, 15211), (9169, 14063)]