256478544

素因数分解:

$2^4\times 3^2\times 7^2\times {\mathrm{163}}^1\times {\mathrm{223}}^1$

素因数の和:414

約数の個数: 180

約数和(自身を含む): 843862656

約数和(自身を除く): 587384112

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 49, 56, 63, 72, 84, 98, 112, 126, 144, 147, 163, 168, 196, 223, 252, 294, 326, 336, 392, 441, 446, 489, 504, 588, 652, 669, 784, 882, 892, 978, 1008, 1141, 1176, 1304, 1338, 1467, 1561, 1764, 1784, 1956, 2007, 2282, 2352, 2608, 2676, 2934, 3122, 3423, 3528, 3568, 3912, 4014, 4564, 4683, 5352, 5868, 6244, 6846, 7056, 7824, 7987, 8028, 9128, 9366, 10269, 10704, 10927, 11736, 12488, 13692, 14049, 15974, 16056, 18256, 18732, 20538, 21854, 23472, 23961, 24976, 27384, 28098, 31948, 32112, 32781, 36349, 37464, 41076, 43708, 47922, 54768, 56196, 63896, 65562, 71883, 72698, 74928, 82152, 87416, 95844, 98343, 109047, 112392, 127792, 131124, 143766, 145396, 164304, 174832, 191688, 196686, 218094, 224784, 254443, 262248, 287532, 290792, 327141, 383376, 393372, 436188, 508886, 524496, 575064, 581584, 654282, 763329, 786744, 872376, 1017772, 1150128, 1308564, 1526658, 1573488, 1744752, 1781101, 2035544, 2289987, 2617128, 3053316, 3562202, 4071088, 4579974, 5234256, 5343303, 6106632, 7124404, 9159948, 10686606, 12213264, 14248808, 16029909, 18319896, 21373212, 28497616, 32059818, 36639792, 42746424, 64119636, 85492848, 128239272, 256478544]

約数ペア:

[(1, 256478544), (2, 128239272), (3, 85492848), (4, 64119636), (6, 42746424), (7, 36639792), (8, 32059818), (9, 28497616), (12, 21373212), (14, 18319896), (16, 16029909), (18, 14248808), (21, 12213264), (24, 10686606), (28, 9159948), (36, 7124404), (42, 6106632), (48, 5343303), (49, 5234256), (56, 4579974), (63, 4071088), (72, 3562202), (84, 3053316), (98, 2617128), (112, 2289987), (126, 2035544), (144, 1781101), (147, 1744752), (163, 1573488), (168, 1526658), (196, 1308564), (223, 1150128), (252, 1017772), (294, 872376), (326, 786744), (336, 763329), (392, 654282), (441, 581584), (446, 575064), (489, 524496), (504, 508886), (588, 436188), (652, 393372), (669, 383376), (784, 327141), (882, 290792), (892, 287532), (978, 262248), (1008, 254443), (1141, 224784), (1176, 218094), (1304, 196686), (1338, 191688), (1467, 174832), (1561, 164304), (1764, 145396), (1784, 143766), (1956, 131124), (2007, 127792), (2282, 112392), (2352, 109047), (2608, 98343), (2676, 95844), (2934, 87416), (3122, 82152), (3423, 74928), (3528, 72698), (3568, 71883), (3912, 65562), (4014, 63896), (4564, 56196), (4683, 54768), (5352, 47922), (5868, 43708), (6244, 41076), (6846, 37464), (7056, 36349), (7824, 32781), (7987, 32112), (8028, 31948), (9128, 28098), (9366, 27384), (10269, 24976), (10704, 23961), (10927, 23472), (11736, 21854), (12488, 20538), (13692, 18732), (14049, 18256), (15974, 16056)]