1279238520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{337}}^1\times {\mathrm{4519}}^1$

素因数の和:4877

約数の個数: 128

約数和(自身を含む): 4399948800

約数和(自身を除く): 3120710280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 337, 420, 674, 840, 1011, 1348, 1685, 2022, 2359, 2696, 3370, 4044, 4519, 4718, 5055, 6740, 7077, 8088, 9038, 9436, 10110, 11795, 13480, 13557, 14154, 18076, 18872, 20220, 22595, 23590, 27114, 28308, 31633, 35385, 36152, 40440, 45190, 47180, 54228, 56616, 63266, 67785, 70770, 90380, 94360, 94899, 108456, 126532, 135570, 141540, 158165, 180760, 189798, 253064, 271140, 283080, 316330, 379596, 474495, 542280, 632660, 759192, 948990, 1265320, 1522903, 1897980, 3045806, 3795960, 4568709, 6091612, 7614515, 9137418, 10660321, 12183224, 15229030, 18274836, 21320642, 22843545, 30458060, 31980963, 36549672, 42641284, 45687090, 53301605, 60916120, 63961926, 85282568, 91374180, 106603210, 127923852, 159904815, 182748360, 213206420, 255847704, 319809630, 426412840, 639619260, 1279238520]

約数ペア:

[(1, 1279238520), (2, 639619260), (3, 426412840), (4, 319809630), (5, 255847704), (6, 213206420), (7, 182748360), (8, 159904815), (10, 127923852), (12, 106603210), (14, 91374180), (15, 85282568), (20, 63961926), (21, 60916120), (24, 53301605), (28, 45687090), (30, 42641284), (35, 36549672), (40, 31980963), (42, 30458060), (56, 22843545), (60, 21320642), (70, 18274836), (84, 15229030), (105, 12183224), (120, 10660321), (140, 9137418), (168, 7614515), (210, 6091612), (280, 4568709), (337, 3795960), (420, 3045806), (674, 1897980), (840, 1522903), (1011, 1265320), (1348, 948990), (1685, 759192), (2022, 632660), (2359, 542280), (2696, 474495), (3370, 379596), (4044, 316330), (4519, 283080), (4718, 271140), (5055, 253064), (6740, 189798), (7077, 180760), (8088, 158165), (9038, 141540), (9436, 135570), (10110, 126532), (11795, 108456), (13480, 94899), (13557, 94360), (14154, 90380), (18076, 70770), (18872, 67785), (20220, 63266), (22595, 56616), (23590, 54228), (27114, 47180), (28308, 45190), (31633, 40440), (35385, 36152)]