81147872

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{2011}}^1$

素因数の和:2131

約数の個数: 48

約数和(自身を含む): 173909232

約数和(自身を除く): 92761360

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 97, 104, 194, 208, 388, 416, 776, 1261, 1552, 2011, 2522, 3104, 4022, 5044, 8044, 10088, 16088, 20176, 26143, 32176, 40352, 52286, 64352, 104572, 195067, 209144, 390134, 418288, 780268, 836576, 1560536, 2535871, 3121072, 5071742, 6242144, 10143484, 20286968, 40573936, 81147872]

約数ペア:

[(1, 81147872), (2, 40573936), (4, 20286968), (8, 10143484), (13, 6242144), (16, 5071742), (26, 3121072), (32, 2535871), (52, 1560536), (97, 836576), (104, 780268), (194, 418288), (208, 390134), (388, 209144), (416, 195067), (776, 104572), (1261, 64352), (1552, 52286), (2011, 40352), (2522, 32176), (3104, 26143), (4022, 20176), (5044, 16088), (8044, 10088)]