1281798004

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1\times {\mathrm{1321}}^1$

素因数の和:1600

約数の個数: 48

約数和(自身を含む): 2398636800

約数和(自身を除く): 1116838796

約数列:

[1, 2, 4, 23, 46, 53, 92, 106, 199, 212, 398, 796, 1219, 1321, 2438, 2642, 4577, 4876, 5284, 9154, 10547, 18308, 21094, 30383, 42188, 60766, 70013, 121532, 140026, 242581, 262879, 280052, 485162, 525758, 970324, 1051516, 1610299, 3220598, 6046217, 6441196, 12092434, 13932587, 24184868, 27865174, 55730348, 320449501, 640899002, 1281798004]

約数ペア:

[(1, 1281798004), (2, 640899002), (4, 320449501), (23, 55730348), (46, 27865174), (53, 24184868), (92, 13932587), (106, 12092434), (199, 6441196), (212, 6046217), (398, 3220598), (796, 1610299), (1219, 1051516), (1321, 970324), (2438, 525758), (2642, 485162), (4577, 280052), (4876, 262879), (5284, 242581), (9154, 140026), (10547, 121532), (18308, 70013), (21094, 60766), (30383, 42188)]