12741875

素因数分解:

$5^4\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:105

約数の個数: 40

約数和(自身を含む): 17806800

約数和(自身を除く): 5064925

約数列:

[1, 5, 19, 25, 29, 37, 95, 125, 145, 185, 475, 551, 625, 703, 725, 925, 1073, 2375, 2755, 3515, 3625, 4625, 5365, 11875, 13775, 17575, 18125, 20387, 23125, 26825, 68875, 87875, 101935, 134125, 344375, 439375, 509675, 670625, 2548375, 12741875]

約数ペア:

[(1, 12741875), (5, 2548375), (19, 670625), (25, 509675), (29, 439375), (37, 344375), (95, 134125), (125, 101935), (145, 87875), (185, 68875), (475, 26825), (551, 23125), (625, 20387), (703, 18125), (725, 17575), (925, 13775), (1073, 11875), (2375, 5365), (2755, 4625), (3515, 3625)]