12987675

素因数分解:

$3^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{271}}^1$

素因数の和:361

約数の個数: 48

約数和(自身を含む): 24284160

約数和(自身を除く): 11296485

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 71, 75, 135, 213, 225, 271, 355, 639, 675, 813, 1065, 1355, 1775, 1917, 2439, 3195, 4065, 5325, 6775, 7317, 9585, 12195, 15975, 19241, 20325, 36585, 47925, 57723, 60975, 96205, 173169, 182925, 288615, 481025, 519507, 865845, 1443075, 2597535, 4329225, 12987675]

約数ペア:

[(1, 12987675), (3, 4329225), (5, 2597535), (9, 1443075), (15, 865845), (25, 519507), (27, 481025), (45, 288615), (71, 182925), (75, 173169), (135, 96205), (213, 60975), (225, 57723), (271, 47925), (355, 36585), (639, 20325), (675, 19241), (813, 15975), (1065, 12195), (1355, 9585), (1775, 7317), (1917, 6775), (2439, 5325), (3195, 4065)]