81001984

素因数分解:

$2^9\times 7^1\times {\mathrm{97}}^1\times {\mathrm{233}}^1$

素因数の和:355

約数の個数: 80

約数和(自身を含む): 187675488

約数和(自身を除く): 106673504

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 97, 112, 128, 194, 224, 233, 256, 388, 448, 466, 512, 679, 776, 896, 932, 1358, 1552, 1631, 1792, 1864, 2716, 3104, 3262, 3584, 3728, 5432, 6208, 6524, 7456, 10864, 12416, 13048, 14912, 21728, 22601, 24832, 26096, 29824, 43456, 45202, 49664, 52192, 59648, 86912, 90404, 104384, 119296, 158207, 173824, 180808, 208768, 316414, 347648, 361616, 417536, 632828, 723232, 835072, 1265656, 1446464, 2531312, 2892928, 5062624, 5785856, 10125248, 11571712, 20250496, 40500992, 81001984]

約数ペア:

[(1, 81001984), (2, 40500992), (4, 20250496), (7, 11571712), (8, 10125248), (14, 5785856), (16, 5062624), (28, 2892928), (32, 2531312), (56, 1446464), (64, 1265656), (97, 835072), (112, 723232), (128, 632828), (194, 417536), (224, 361616), (233, 347648), (256, 316414), (388, 208768), (448, 180808), (466, 173824), (512, 158207), (679, 119296), (776, 104384), (896, 90404), (932, 86912), (1358, 59648), (1552, 52192), (1631, 49664), (1792, 45202), (1864, 43456), (2716, 29824), (3104, 26096), (3262, 24832), (3584, 22601), (3728, 21728), (5432, 14912), (6208, 13048), (6524, 12416), (7456, 10864)]