128064640

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{18191}}^1$

素因数の和:18221

約数の個数: 64

約数和(自身を含む): 334005120

約数和(自身を除く): 205940480

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 320, 352, 440, 640, 704, 880, 1408, 1760, 3520, 7040, 18191, 36382, 72764, 90955, 145528, 181910, 200101, 291056, 363820, 400202, 582112, 727640, 800404, 1000505, 1164224, 1455280, 1600808, 2001010, 2328448, 2910560, 3201616, 4002020, 5821120, 6403232, 8004040, 11642240, 12806464, 16008080, 25612928, 32016160, 64032320, 128064640]

約数ペア:

[(1, 128064640), (2, 64032320), (4, 32016160), (5, 25612928), (8, 16008080), (10, 12806464), (11, 11642240), (16, 8004040), (20, 6403232), (22, 5821120), (32, 4002020), (40, 3201616), (44, 2910560), (55, 2328448), (64, 2001010), (80, 1600808), (88, 1455280), (110, 1164224), (128, 1000505), (160, 800404), (176, 727640), (220, 582112), (320, 400202), (352, 363820), (440, 291056), (640, 200101), (704, 181910), (880, 145528), (1408, 90955), (1760, 72764), (3520, 36382), (7040, 18191)]