23178155

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{421}}^1$

素因数の和:468

約数の個数: 48

約数和(自身を含む): 37716672

約数和(自身を除く): 14538517

約数列:

[1, 5, 7, 11, 13, 35, 55, 65, 77, 91, 121, 143, 385, 421, 455, 605, 715, 847, 1001, 1573, 2105, 2947, 4235, 4631, 5005, 5473, 7865, 11011, 14735, 23155, 27365, 32417, 38311, 50941, 55055, 60203, 162085, 191555, 254705, 301015, 356587, 421421, 662233, 1782935, 2107105, 3311165, 4635631, 23178155]

約数ペア:

[(1, 23178155), (5, 4635631), (7, 3311165), (11, 2107105), (13, 1782935), (35, 662233), (55, 421421), (65, 356587), (77, 301015), (91, 254705), (121, 191555), (143, 162085), (385, 60203), (421, 55055), (455, 50941), (605, 38311), (715, 32417), (847, 27365), (1001, 23155), (1573, 14735), (2105, 11011), (2947, 7865), (4235, 5473), (4631, 5005)]