81755648

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1$

素因数の和:275

約数の個数: 80

約数和(自身を含む): 179426016

約数和(自身を除く): 97670368

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 71, 104, 128, 142, 173, 208, 256, 284, 346, 416, 512, 568, 692, 832, 923, 1136, 1384, 1664, 1846, 2249, 2272, 2768, 3328, 3692, 4498, 4544, 5536, 6656, 7384, 8996, 9088, 11072, 12283, 14768, 17992, 18176, 22144, 24566, 29536, 35984, 36352, 44288, 49132, 59072, 71968, 88576, 98264, 118144, 143936, 159679, 196528, 236288, 287872, 319358, 393056, 472576, 575744, 638716, 786112, 1151488, 1277432, 1572224, 2554864, 3144448, 5109728, 6288896, 10219456, 20438912, 40877824, 81755648]

約数ペア:

[(1, 81755648), (2, 40877824), (4, 20438912), (8, 10219456), (13, 6288896), (16, 5109728), (26, 3144448), (32, 2554864), (52, 1572224), (64, 1277432), (71, 1151488), (104, 786112), (128, 638716), (142, 575744), (173, 472576), (208, 393056), (256, 319358), (284, 287872), (346, 236288), (416, 196528), (512, 159679), (568, 143936), (692, 118144), (832, 98264), (923, 88576), (1136, 71968), (1384, 59072), (1664, 49132), (1846, 44288), (2249, 36352), (2272, 35984), (2768, 29536), (3328, 24566), (3692, 22144), (4498, 18176), (4544, 17992), (5536, 14768), (6656, 12283), (7384, 11072), (8996, 9088)]