20123961078

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{257999501}}^1$

素因数の和:257999519

約数の個数: 16

約数和(自身を含む): 43343916336

約数和(自身を除く): 23219955258

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 257999501, 515999002, 773998503, 1547997006, 3353993513, 6707987026, 10061980539, 20123961078]

約数ペア:

[(1, 20123961078), (2, 10061980539), (3, 6707987026), (6, 3353993513), (13, 1547997006), (26, 773998503), (39, 515999002), (78, 257999501)]