2040780840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{719}}^1$

素因数の和:880

約数の個数: 256

約数和(自身を含む): 7299072000

約数和(自身を除く): 5258291160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 84, 93, 105, 109, 120, 124, 140, 155, 168, 186, 210, 217, 218, 248, 280, 310, 327, 372, 420, 434, 436, 465, 545, 620, 651, 654, 719, 744, 763, 840, 868, 872, 930, 1085, 1090, 1240, 1302, 1308, 1438, 1526, 1635, 1736, 1860, 2157, 2170, 2180, 2289, 2604, 2616, 2876, 3052, 3255, 3270, 3379, 3595, 3720, 3815, 4314, 4340, 4360, 4578, 5033, 5208, 5752, 6104, 6510, 6540, 6758, 7190, 7630, 8628, 8680, 9156, 10066, 10137, 10785, 11445, 13020, 13080, 13516, 14380, 15099, 15260, 16895, 17256, 18312, 20132, 20274, 21570, 22289, 22890, 23653, 25165, 26040, 27032, 28760, 30198, 30520, 33790, 40264, 40548, 43140, 44578, 45780, 47306, 50330, 50685, 60396, 66867, 67580, 70959, 75495, 78371, 81096, 86280, 89156, 91560, 94612, 100660, 101370, 111445, 118265, 120792, 133734, 135160, 141918, 150990, 156023, 156742, 178312, 189224, 201320, 202740, 222890, 235113, 236530, 267468, 283836, 301980, 312046, 313484, 334335, 354795, 391855, 405480, 445780, 468069, 470226, 473060, 534936, 548597, 567672, 603960, 624092, 626968, 668670, 709590, 780115, 783710, 891560, 936138, 940452, 946120, 1097194, 1175565, 1248184, 1337340, 1419180, 1560230, 1567420, 1645791, 1872276, 1880904, 2194388, 2340345, 2351130, 2429501, 2674680, 2742985, 2838360, 3120460, 3134840, 3291582, 3744552, 4388776, 4680690, 4702260, 4859002, 5485970, 6240920, 6583164, 7288503, 8228955, 9361380, 9404520, 9718004, 10971940, 12147505, 13166328, 14577006, 16457910, 17006507, 18722760, 19436008, 21943880, 24295010, 29154012, 32915820, 34013014, 36442515, 48590020, 51019521, 58308024, 65831640, 68026028, 72885030, 85032535, 97180040, 102039042, 136052056, 145770060, 170065070, 204078084, 255097605, 291540120, 340130140, 408156168, 510195210, 680260280, 1020390420, 2040780840]

約数ペア:

[(1, 2040780840), (2, 1020390420), (3, 680260280), (4, 510195210), (5, 408156168), (6, 340130140), (7, 291540120), (8, 255097605), (10, 204078084), (12, 170065070), (14, 145770060), (15, 136052056), (20, 102039042), (21, 97180040), (24, 85032535), (28, 72885030), (30, 68026028), (31, 65831640), (35, 58308024), (40, 51019521), (42, 48590020), (56, 36442515), (60, 34013014), (62, 32915820), (70, 29154012), (84, 24295010), (93, 21943880), (105, 19436008), (109, 18722760), (120, 17006507), (124, 16457910), (140, 14577006), (155, 13166328), (168, 12147505), (186, 10971940), (210, 9718004), (217, 9404520), (218, 9361380), (248, 8228955), (280, 7288503), (310, 6583164), (327, 6240920), (372, 5485970), (420, 4859002), (434, 4702260), (436, 4680690), (465, 4388776), (545, 3744552), (620, 3291582), (651, 3134840), (654, 3120460), (719, 2838360), (744, 2742985), (763, 2674680), (840, 2429501), (868, 2351130), (872, 2340345), (930, 2194388), (1085, 1880904), (1090, 1872276), (1240, 1645791), (1302, 1567420), (1308, 1560230), (1438, 1419180), (1526, 1337340), (1635, 1248184), (1736, 1175565), (1860, 1097194), (2157, 946120), (2170, 940452), (2180, 936138), (2289, 891560), (2604, 783710), (2616, 780115), (2876, 709590), (3052, 668670), (3255, 626968), (3270, 624092), (3379, 603960), (3595, 567672), (3720, 548597), (3815, 534936), (4314, 473060), (4340, 470226), (4360, 468069), (4578, 445780), (5033, 405480), (5208, 391855), (5752, 354795), (6104, 334335), (6510, 313484), (6540, 312046), (6758, 301980), (7190, 283836), (7630, 267468), (8628, 236530), (8680, 235113), (9156, 222890), (10066, 202740), (10137, 201320), (10785, 189224), (11445, 178312), (13020, 156742), (13080, 156023), (13516, 150990), (14380, 141918), (15099, 135160), (15260, 133734), (16895, 120792), (17256, 118265), (18312, 111445), (20132, 101370), (20274, 100660), (21570, 94612), (22289, 91560), (22890, 89156), (23653, 86280), (25165, 81096), (26040, 78371), (27032, 75495), (28760, 70959), (30198, 67580), (30520, 66867), (33790, 60396), (40264, 50685), (40548, 50330), (43140, 47306), (44578, 45780)]