256327920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1789}}^1$

素因数の和:2007

約数の個数: 120

約数和(自身を含む): 865644000

約数和(自身を除く): 609316080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 199, 240, 360, 398, 597, 720, 796, 995, 1194, 1592, 1789, 1791, 1990, 2388, 2985, 3184, 3578, 3582, 3980, 4776, 5367, 5970, 7156, 7164, 7960, 8945, 8955, 9552, 10734, 11940, 14312, 14328, 15920, 16101, 17890, 17910, 21468, 23880, 26835, 28624, 28656, 32202, 35780, 35820, 42936, 47760, 53670, 64404, 71560, 71640, 80505, 85872, 107340, 128808, 143120, 143280, 161010, 214680, 257616, 322020, 356011, 429360, 644040, 712022, 1068033, 1288080, 1424044, 1780055, 2136066, 2848088, 3204099, 3560110, 4272132, 5340165, 5696176, 6408198, 7120220, 8544264, 10680330, 12816396, 14240440, 16020495, 17088528, 21360660, 25632792, 28480880, 32040990, 42721320, 51265584, 64081980, 85442640, 128163960, 256327920]

約数ペア:

[(1, 256327920), (2, 128163960), (3, 85442640), (4, 64081980), (5, 51265584), (6, 42721320), (8, 32040990), (9, 28480880), (10, 25632792), (12, 21360660), (15, 17088528), (16, 16020495), (18, 14240440), (20, 12816396), (24, 10680330), (30, 8544264), (36, 7120220), (40, 6408198), (45, 5696176), (48, 5340165), (60, 4272132), (72, 3560110), (80, 3204099), (90, 2848088), (120, 2136066), (144, 1780055), (180, 1424044), (199, 1288080), (240, 1068033), (360, 712022), (398, 644040), (597, 429360), (720, 356011), (796, 322020), (995, 257616), (1194, 214680), (1592, 161010), (1789, 143280), (1791, 143120), (1990, 128808), (2388, 107340), (2985, 85872), (3184, 80505), (3578, 71640), (3582, 71560), (3980, 64404), (4776, 53670), (5367, 47760), (5970, 42936), (7156, 35820), (7164, 35780), (7960, 32202), (8945, 28656), (8955, 28624), (9552, 26835), (10734, 23880), (11940, 21468), (14312, 17910), (14328, 17890), (15920, 16101)]