257019984

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{547}}^1$

素因数の和:825

約数の個数: 120

約数和(自身を含む): 779137632

約数和(自身を除く): 522117648

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 144, 156, 208, 234, 251, 312, 468, 502, 547, 624, 753, 936, 1004, 1094, 1506, 1641, 1872, 2008, 2188, 2259, 3012, 3263, 3282, 4016, 4376, 4518, 4923, 6024, 6526, 6564, 7111, 8752, 9036, 9789, 9846, 12048, 13052, 13128, 14222, 18072, 19578, 19692, 21333, 26104, 26256, 28444, 29367, 36144, 39156, 39384, 42666, 52208, 56888, 58734, 63999, 78312, 78768, 85332, 113776, 117468, 127998, 137297, 156624, 170664, 234936, 255996, 274594, 341328, 411891, 469872, 511992, 549188, 823782, 1023984, 1098376, 1235673, 1647564, 1784861, 2196752, 2471346, 3295128, 3569722, 4942692, 5354583, 6590256, 7139444, 9885384, 10709166, 14278888, 16063749, 19770768, 21418332, 28557776, 32127498, 42836664, 64254996, 85673328, 128509992, 257019984]

約数ペア:

[(1, 257019984), (2, 128509992), (3, 85673328), (4, 64254996), (6, 42836664), (8, 32127498), (9, 28557776), (12, 21418332), (13, 19770768), (16, 16063749), (18, 14278888), (24, 10709166), (26, 9885384), (36, 7139444), (39, 6590256), (48, 5354583), (52, 4942692), (72, 3569722), (78, 3295128), (104, 2471346), (117, 2196752), (144, 1784861), (156, 1647564), (208, 1235673), (234, 1098376), (251, 1023984), (312, 823782), (468, 549188), (502, 511992), (547, 469872), (624, 411891), (753, 341328), (936, 274594), (1004, 255996), (1094, 234936), (1506, 170664), (1641, 156624), (1872, 137297), (2008, 127998), (2188, 117468), (2259, 113776), (3012, 85332), (3263, 78768), (3282, 78312), (4016, 63999), (4376, 58734), (4518, 56888), (4923, 52208), (6024, 42666), (6526, 39384), (6564, 39156), (7111, 36144), (8752, 29367), (9036, 28444), (9789, 26256), (9846, 26104), (12048, 21333), (13052, 19692), (13128, 19578), (14222, 18072)]