38643880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1237}}^1$

素因数の和:1330

約数の個数: 64

約数和(自身を含む): 96266880

約数和(自身を除く): 57623000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 142, 220, 284, 355, 440, 568, 710, 781, 1237, 1420, 1562, 2474, 2840, 3124, 3905, 4948, 6185, 6248, 7810, 9896, 12370, 13607, 15620, 24740, 27214, 31240, 49480, 54428, 68035, 87827, 108856, 136070, 175654, 272140, 351308, 439135, 544280, 702616, 878270, 966097, 1756540, 1932194, 3513080, 3864388, 4830485, 7728776, 9660970, 19321940, 38643880]

約数ペア:

[(1, 38643880), (2, 19321940), (4, 9660970), (5, 7728776), (8, 4830485), (10, 3864388), (11, 3513080), (20, 1932194), (22, 1756540), (40, 966097), (44, 878270), (55, 702616), (71, 544280), (88, 439135), (110, 351308), (142, 272140), (220, 175654), (284, 136070), (355, 108856), (440, 87827), (568, 68035), (710, 54428), (781, 49480), (1237, 31240), (1420, 27214), (1562, 24740), (2474, 15620), (2840, 13607), (3124, 12370), (3905, 9896), (4948, 7810), (6185, 6248)]