390607679

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{409}}^1$

素因数の和:663

約数の個数: 32

約数和(自身を含む): 497510400

約数和(自身を除く): 106902721

約数列:

[1, 7, 11, 77, 79, 157, 409, 553, 869, 1099, 1727, 2863, 4499, 6083, 12089, 12403, 31493, 32311, 64213, 86821, 136433, 226177, 355421, 449491, 706343, 955031, 2487947, 4944401, 5072827, 35509789, 55801097, 390607679]

約数ペア:

[(1, 390607679), (7, 55801097), (11, 35509789), (77, 5072827), (79, 4944401), (157, 2487947), (409, 955031), (553, 706343), (869, 449491), (1099, 355421), (1727, 226177), (2863, 136433), (4499, 86821), (6083, 64213), (12089, 32311), (12403, 31493)]