127943420

素因数分解:

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

素因数の和:8282

約数の個数: 48

約数和(自身を含む): 297271296

約数和(自身を除く): 169327876

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 1420, 1562, 3124, 3905, 7810, 8191, 15620, 16382, 32764, 40955, 81910, 90101, 163820, 180202, 360404, 450505, 581561, 901010, 1163122, 1802020, 2326244, 2907805, 5815610, 6397171, 11631220, 12794342, 25588684, 31985855, 63971710, 127943420]

約数ペア:

[(1, 127943420), (2, 63971710), (4, 31985855), (5, 25588684), (10, 12794342), (11, 11631220), (20, 6397171), (22, 5815610), (44, 2907805), (55, 2326244), (71, 1802020), (110, 1163122), (142, 901010), (220, 581561), (284, 450505), (355, 360404), (710, 180202), (781, 163820), (1420, 90101), (1562, 81910), (3124, 40955), (3905, 32764), (7810, 16382), (8191, 15620)]