255886840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{8191}}^1$

素因数の和:8284

約数の個数: 64

約数和(自身を含む): 637009920

約数和(自身を除く): 381123080

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, 1420, 1562, 2840, 3124, 3905, 6248, 7810, 8191, 15620, 16382, 31240, 32764, 40955, 65528, 81910, 90101, 163820, 180202, 327640, 360404, 450505, 581561, 720808, 901010, 1163122, 1802020, 2326244, 2907805, 3604040, 4652488, 5815610, 6397171, 11631220, 12794342, 23262440, 25588684, 31985855, 51177368, 63971710, 127943420, 255886840]

約数ペア:

[(1, 255886840), (2, 127943420), (4, 63971710), (5, 51177368), (8, 31985855), (10, 25588684), (11, 23262440), (20, 12794342), (22, 11631220), (40, 6397171), (44, 5815610), (55, 4652488), (71, 3604040), (88, 2907805), (110, 2326244), (142, 1802020), (220, 1163122), (284, 901010), (355, 720808), (440, 581561), (568, 450505), (710, 360404), (781, 327640), (1420, 180202), (1562, 163820), (2840, 90101), (3124, 81910), (3905, 65528), (6248, 40955), (7810, 32764), (8191, 31240), (15620, 16382)]