256409712

素因数分解:

$2^4\times 3^6\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1$

素因数の和:147

約数の個数: 280

約数和(自身を含む): 853851600

約数和(自身を除く): 597441888

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 19, 24, 26, 27, 36, 38, 39, 48, 52, 54, 57, 72, 76, 78, 81, 89, 104, 108, 114, 117, 144, 152, 156, 162, 171, 178, 208, 216, 228, 234, 243, 247, 267, 304, 312, 324, 342, 351, 356, 432, 456, 468, 486, 494, 513, 534, 624, 648, 684, 702, 712, 729, 741, 801, 912, 936, 972, 988, 1026, 1053, 1068, 1157, 1296, 1368, 1404, 1424, 1458, 1482, 1539, 1602, 1691, 1872, 1944, 1976, 2052, 2106, 2136, 2223, 2314, 2403, 2736, 2808, 2916, 2964, 3078, 3159, 3204, 3382, 3471, 3888, 3952, 4104, 4212, 4272, 4446, 4617, 4628, 4806, 5073, 5616, 5832, 5928, 6156, 6318, 6408, 6669, 6764, 6942, 7209, 8208, 8424, 8892, 9234, 9256, 9477, 9612, 10146, 10413, 11664, 11856, 12312, 12636, 12816, 13338, 13528, 13851, 13884, 14418, 15219, 16848, 17784, 18468, 18512, 18954, 19224, 20007, 20292, 20826, 21627, 21983, 24624, 25272, 26676, 27056, 27702, 27768, 28836, 30438, 31239, 35568, 36936, 37908, 38448, 40014, 40584, 41652, 43254, 43966, 45657, 50544, 53352, 55404, 55536, 57672, 60021, 60876, 62478, 64881, 65949, 73872, 75816, 80028, 81168, 83304, 86508, 87932, 91314, 93717, 106704, 110808, 115344, 120042, 121752, 124956, 129762, 131898, 136971, 151632, 160056, 166608, 173016, 175864, 180063, 182628, 187434, 197847, 221616, 240084, 243504, 249912, 259524, 263796, 273942, 281151, 320112, 346032, 351728, 360126, 365256, 374868, 395694, 410913, 480168, 499824, 519048, 527592, 547884, 562302, 593541, 720252, 730512, 749736, 791388, 821826, 843453, 960336, 1038096, 1055184, 1095768, 1124604, 1187082, 1232739, 1440504, 1499472, 1582776, 1643652, 1686906, 1780623, 2191536, 2249208, 2374164, 2465478, 2881008, 3165552, 3287304, 3373812, 3561246, 4498416, 4748328, 4930956, 5341869, 6574608, 6747624, 7122492, 9496656, 9861912, 10683738, 13495248, 14244984, 16025607, 19723824, 21367476, 28489968, 32051214, 42734952, 64102428, 85469904, 128204856, 256409712]

約数ペア:

[(1, 256409712), (2, 128204856), (3, 85469904), (4, 64102428), (6, 42734952), (8, 32051214), (9, 28489968), (12, 21367476), (13, 19723824), (16, 16025607), (18, 14244984), (19, 13495248), (24, 10683738), (26, 9861912), (27, 9496656), (36, 7122492), (38, 6747624), (39, 6574608), (48, 5341869), (52, 4930956), (54, 4748328), (57, 4498416), (72, 3561246), (76, 3373812), (78, 3287304), (81, 3165552), (89, 2881008), (104, 2465478), (108, 2374164), (114, 2249208), (117, 2191536), (144, 1780623), (152, 1686906), (156, 1643652), (162, 1582776), (171, 1499472), (178, 1440504), (208, 1232739), (216, 1187082), (228, 1124604), (234, 1095768), (243, 1055184), (247, 1038096), (267, 960336), (304, 843453), (312, 821826), (324, 791388), (342, 749736), (351, 730512), (356, 720252), (432, 593541), (456, 562302), (468, 547884), (486, 527592), (494, 519048), (513, 499824), (534, 480168), (624, 410913), (648, 395694), (684, 374868), (702, 365256), (712, 360126), (729, 351728), (741, 346032), (801, 320112), (912, 281151), (936, 273942), (972, 263796), (988, 259524), (1026, 249912), (1053, 243504), (1068, 240084), (1157, 221616), (1296, 197847), (1368, 187434), (1404, 182628), (1424, 180063), (1458, 175864), (1482, 173016), (1539, 166608), (1602, 160056), (1691, 151632), (1872, 136971), (1944, 131898), (1976, 129762), (2052, 124956), (2106, 121752), (2136, 120042), (2223, 115344), (2314, 110808), (2403, 106704), (2736, 93717), (2808, 91314), (2916, 87932), (2964, 86508), (3078, 83304), (3159, 81168), (3204, 80028), (3382, 75816), (3471, 73872), (3888, 65949), (3952, 64881), (4104, 62478), (4212, 60876), (4272, 60021), (4446, 57672), (4617, 55536), (4628, 55404), (4806, 53352), (5073, 50544), (5616, 45657), (5832, 43966), (5928, 43254), (6156, 41652), (6318, 40584), (6408, 40014), (6669, 38448), (6764, 37908), (6942, 36936), (7209, 35568), (8208, 31239), (8424, 30438), (8892, 28836), (9234, 27768), (9256, 27702), (9477, 27056), (9612, 26676), (10146, 25272), (10413, 24624), (11664, 21983), (11856, 21627), (12312, 20826), (12636, 20292), (12816, 20007), (13338, 19224), (13528, 18954), (13851, 18512), (13884, 18468), (14418, 17784), (15219, 16848)]