256030880

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{17}}^2\times {\mathrm{113}}^1$

素因数の和:176

約数の個数: 216

約数和(自身を含む): 754066908

約数和(自身を除く): 498036028

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 49, 56, 68, 70, 80, 85, 98, 112, 113, 119, 136, 140, 160, 170, 196, 224, 226, 238, 245, 272, 280, 289, 340, 392, 452, 476, 490, 544, 560, 565, 578, 595, 680, 784, 791, 833, 904, 952, 980, 1120, 1130, 1156, 1190, 1360, 1445, 1568, 1582, 1666, 1808, 1904, 1921, 1960, 2023, 2260, 2312, 2380, 2720, 2890, 3164, 3332, 3616, 3808, 3842, 3920, 3955, 4046, 4165, 4520, 4624, 4760, 5537, 5780, 6328, 6664, 7684, 7840, 7910, 8092, 8330, 9040, 9248, 9520, 9605, 10115, 11074, 11560, 12656, 13328, 13447, 14161, 15368, 15820, 16184, 16660, 18080, 19040, 19210, 20230, 22148, 23120, 25312, 26656, 26894, 27685, 28322, 30736, 31640, 32368, 32657, 33320, 38420, 40460, 44296, 46240, 53788, 55370, 56644, 61472, 63280, 64736, 65314, 66640, 67235, 70805, 76840, 80920, 88592, 94129, 107576, 110740, 113288, 126560, 130628, 133280, 134470, 141610, 153680, 161840, 163285, 177184, 188258, 215152, 221480, 226576, 228599, 261256, 268940, 283220, 307360, 323680, 326570, 376516, 430304, 442960, 453152, 457198, 470645, 522512, 537880, 566440, 653140, 753032, 885920, 914396, 941290, 1045024, 1075760, 1132880, 1142995, 1306280, 1506064, 1600193, 1828792, 1882580, 2151520, 2265760, 2285990, 2612560, 3012128, 3200386, 3657584, 3765160, 4571980, 5225120, 6400772, 7315168, 7530320, 8000965, 9143960, 12801544, 15060640, 16001930, 18287920, 25603088, 32003860, 36575840, 51206176, 64007720, 128015440, 256030880]

約数ペア:

[(1, 256030880), (2, 128015440), (4, 64007720), (5, 51206176), (7, 36575840), (8, 32003860), (10, 25603088), (14, 18287920), (16, 16001930), (17, 15060640), (20, 12801544), (28, 9143960), (32, 8000965), (34, 7530320), (35, 7315168), (40, 6400772), (49, 5225120), (56, 4571980), (68, 3765160), (70, 3657584), (80, 3200386), (85, 3012128), (98, 2612560), (112, 2285990), (113, 2265760), (119, 2151520), (136, 1882580), (140, 1828792), (160, 1600193), (170, 1506064), (196, 1306280), (224, 1142995), (226, 1132880), (238, 1075760), (245, 1045024), (272, 941290), (280, 914396), (289, 885920), (340, 753032), (392, 653140), (452, 566440), (476, 537880), (490, 522512), (544, 470645), (560, 457198), (565, 453152), (578, 442960), (595, 430304), (680, 376516), (784, 326570), (791, 323680), (833, 307360), (904, 283220), (952, 268940), (980, 261256), (1120, 228599), (1130, 226576), (1156, 221480), (1190, 215152), (1360, 188258), (1445, 177184), (1568, 163285), (1582, 161840), (1666, 153680), (1808, 141610), (1904, 134470), (1921, 133280), (1960, 130628), (2023, 126560), (2260, 113288), (2312, 110740), (2380, 107576), (2720, 94129), (2890, 88592), (3164, 80920), (3332, 76840), (3616, 70805), (3808, 67235), (3842, 66640), (3920, 65314), (3955, 64736), (4046, 63280), (4165, 61472), (4520, 56644), (4624, 55370), (4760, 53788), (5537, 46240), (5780, 44296), (6328, 40460), (6664, 38420), (7684, 33320), (7840, 32657), (7910, 32368), (8092, 31640), (8330, 30736), (9040, 28322), (9248, 27685), (9520, 26894), (9605, 26656), (10115, 25312), (11074, 23120), (11560, 22148), (12656, 20230), (13328, 19210), (13447, 19040), (14161, 18080), (15368, 16660), (15820, 16184)]