1981496

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:140

約数の個数: 48

約数和(自身を含む): 4309200

約数和(自身を除く): 2327704

約数列:

[1, 2, 4, 8, 11, 22, 23, 44, 46, 88, 89, 92, 121, 178, 184, 242, 253, 356, 484, 506, 712, 968, 979, 1012, 1958, 2024, 2047, 2783, 3916, 4094, 5566, 7832, 8188, 10769, 11132, 16376, 21538, 22264, 22517, 43076, 45034, 86152, 90068, 180136, 247687, 495374, 990748, 1981496]

約数ペア:

[(1, 1981496), (2, 990748), (4, 495374), (8, 247687), (11, 180136), (22, 90068), (23, 86152), (44, 45034), (46, 43076), (88, 22517), (89, 22264), (92, 21538), (121, 16376), (178, 11132), (184, 10769), (242, 8188), (253, 7832), (356, 5566), (484, 4094), (506, 3916), (712, 2783), (968, 2047), (979, 2024), (1012, 1958)]