2678728

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{599}}^1$

素因数の和:661

約数の個数: 32

約数和(自身を含む): 5544000

約数和(自身を除く): 2865272

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 599, 1118, 1198, 2236, 2396, 4472, 4792, 7787, 15574, 25757, 31148, 51514, 62296, 103028, 206056, 334841, 669682, 1339364, 2678728]

約数ペア:

[(1, 2678728), (2, 1339364), (4, 669682), (8, 334841), (13, 206056), (26, 103028), (43, 62296), (52, 51514), (86, 31148), (104, 25757), (172, 15574), (344, 7787), (559, 4792), (599, 4472), (1118, 2396), (1198, 2236)]