65994370

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{2551}}^1$

素因数の和:2770

約数の個数: 32

約数和(自身を含む): 128620800

約数和(自身を除く): 62626430

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 199, 398, 995, 1990, 2551, 2587, 5102, 5174, 12755, 12935, 25510, 25870, 33163, 66326, 165815, 331630, 507649, 1015298, 2538245, 5076490, 6599437, 13198874, 32997185, 65994370]

約数ペア:

[(1, 65994370), (2, 32997185), (5, 13198874), (10, 6599437), (13, 5076490), (26, 2538245), (65, 1015298), (130, 507649), (199, 331630), (398, 165815), (995, 66326), (1990, 33163), (2551, 25870), (2587, 25510), (5102, 12935), (5174, 12755)]