12890745

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{4547}}^1$

素因数の和:4571

約数の個数: 40

約数和(自身を含む): 26414784

約数和(自身を除く): 13524039

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 315, 405, 567, 945, 2835, 4547, 13641, 22735, 31829, 40923, 68205, 95487, 122769, 159145, 204615, 286461, 368307, 477435, 613845, 859383, 1432305, 1841535, 2578149, 4296915, 12890745]

約数ペア:

[(1, 12890745), (3, 4296915), (5, 2578149), (7, 1841535), (9, 1432305), (15, 859383), (21, 613845), (27, 477435), (35, 368307), (45, 286461), (63, 204615), (81, 159145), (105, 122769), (135, 95487), (189, 68205), (315, 40923), (405, 31829), (567, 22735), (945, 13641), (2835, 4547)]