8720864

素因数分解:

$2^5\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1$

素因数の和:108

約数の個数: 72

約数和(自身を含む): 19495728

約数和(自身を除く): 10774864

約数列:

[1, 2, 4, 8, 16, 17, 23, 32, 34, 41, 46, 68, 82, 92, 136, 164, 184, 272, 289, 328, 368, 391, 544, 578, 656, 697, 736, 782, 943, 1156, 1312, 1394, 1564, 1886, 2312, 2788, 3128, 3772, 4624, 5576, 6256, 6647, 7544, 9248, 11152, 11849, 12512, 13294, 15088, 16031, 22304, 23698, 26588, 30176, 32062, 47396, 53176, 64124, 94792, 106352, 128248, 189584, 212704, 256496, 272527, 379168, 512992, 545054, 1090108, 2180216, 4360432, 8720864]

約数ペア:

[(1, 8720864), (2, 4360432), (4, 2180216), (8, 1090108), (16, 545054), (17, 512992), (23, 379168), (32, 272527), (34, 256496), (41, 212704), (46, 189584), (68, 128248), (82, 106352), (92, 94792), (136, 64124), (164, 53176), (184, 47396), (272, 32062), (289, 30176), (328, 26588), (368, 23698), (391, 22304), (544, 16031), (578, 15088), (656, 13294), (697, 12512), (736, 11849), (782, 11152), (943, 9248), (1156, 7544), (1312, 6647), (1394, 6256), (1564, 5576), (1886, 4624), (2312, 3772), (2788, 3128)]