80745728

素因数分解:

$2^8\times 7^2\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:228

約数の個数: 108

約数和(自身を含む): 193286772

約数和(自身を除く): 112541044

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 41, 49, 56, 64, 82, 98, 112, 128, 157, 164, 196, 224, 256, 287, 314, 328, 392, 448, 574, 628, 656, 784, 896, 1099, 1148, 1256, 1312, 1568, 1792, 2009, 2198, 2296, 2512, 2624, 3136, 4018, 4396, 4592, 5024, 5248, 6272, 6437, 7693, 8036, 8792, 9184, 10048, 10496, 12544, 12874, 15386, 16072, 17584, 18368, 20096, 25748, 30772, 32144, 35168, 36736, 40192, 45059, 51496, 61544, 64288, 70336, 73472, 90118, 102992, 123088, 128576, 140672, 180236, 205984, 246176, 257152, 281344, 315413, 360472, 411968, 492352, 514304, 630826, 720944, 823936, 984704, 1261652, 1441888, 1647872, 1969408, 2523304, 2883776, 5046608, 5767552, 10093216, 11535104, 20186432, 40372864, 80745728]

約数ペア:

[(1, 80745728), (2, 40372864), (4, 20186432), (7, 11535104), (8, 10093216), (14, 5767552), (16, 5046608), (28, 2883776), (32, 2523304), (41, 1969408), (49, 1647872), (56, 1441888), (64, 1261652), (82, 984704), (98, 823936), (112, 720944), (128, 630826), (157, 514304), (164, 492352), (196, 411968), (224, 360472), (256, 315413), (287, 281344), (314, 257152), (328, 246176), (392, 205984), (448, 180236), (574, 140672), (628, 128576), (656, 123088), (784, 102992), (896, 90118), (1099, 73472), (1148, 70336), (1256, 64288), (1312, 61544), (1568, 51496), (1792, 45059), (2009, 40192), (2198, 36736), (2296, 35168), (2512, 32144), (2624, 30772), (3136, 25748), (4018, 20096), (4396, 18368), (4592, 17584), (5024, 16072), (5248, 15386), (6272, 12874), (6437, 12544), (7693, 10496), (8036, 10048), (8792, 9184)]