81308416

素因数分解:

$2^8\times 7^1\times {\mathrm{17}}^2\times {\mathrm{157}}^1$

素因数の和:214

約数の個数: 108

約数和(自身を含む): 198292528

約数和(自身を除く): 116984112

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 56, 64, 68, 112, 119, 128, 136, 157, 224, 238, 256, 272, 289, 314, 448, 476, 544, 578, 628, 896, 952, 1088, 1099, 1156, 1256, 1792, 1904, 2023, 2176, 2198, 2312, 2512, 2669, 3808, 4046, 4352, 4396, 4624, 5024, 5338, 7616, 8092, 8792, 9248, 10048, 10676, 15232, 16184, 17584, 18496, 18683, 20096, 21352, 30464, 32368, 35168, 36992, 37366, 40192, 42704, 45373, 64736, 70336, 73984, 74732, 85408, 90746, 129472, 140672, 149464, 170816, 181492, 258944, 281344, 298928, 317611, 341632, 362984, 517888, 597856, 635222, 683264, 725968, 1195712, 1270444, 1451936, 2391424, 2540888, 2903872, 4782848, 5081776, 5807744, 10163552, 11615488, 20327104, 40654208, 81308416]

約数ペア:

[(1, 81308416), (2, 40654208), (4, 20327104), (7, 11615488), (8, 10163552), (14, 5807744), (16, 5081776), (17, 4782848), (28, 2903872), (32, 2540888), (34, 2391424), (56, 1451936), (64, 1270444), (68, 1195712), (112, 725968), (119, 683264), (128, 635222), (136, 597856), (157, 517888), (224, 362984), (238, 341632), (256, 317611), (272, 298928), (289, 281344), (314, 258944), (448, 181492), (476, 170816), (544, 149464), (578, 140672), (628, 129472), (896, 90746), (952, 85408), (1088, 74732), (1099, 73984), (1156, 70336), (1256, 64736), (1792, 45373), (1904, 42704), (2023, 40192), (2176, 37366), (2198, 36992), (2312, 35168), (2512, 32368), (2669, 30464), (3808, 21352), (4046, 20096), (4352, 18683), (4396, 18496), (4624, 17584), (5024, 16184), (5338, 15232), (7616, 10676), (8092, 10048), (8792, 9248)]