25720804520

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{769}}^1\times {\mathrm{17791}}^1$

素因数の和:18618

約数の個数: 64

約数和(自身を含む): 59183308800

約数和(自身を除く): 33462504280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 769, 940, 1538, 1880, 3076, 3845, 6152, 7690, 15380, 17791, 30760, 35582, 36143, 71164, 72286, 88955, 142328, 144572, 177910, 180715, 289144, 355820, 361430, 711640, 722860, 836177, 1445720, 1672354, 3344708, 4180885, 6689416, 8361770, 13681279, 16723540, 27362558, 33447080, 54725116, 68406395, 109450232, 136812790, 273625580, 547251160, 643020113, 1286040226, 2572080452, 3215100565, 5144160904, 6430201130, 12860402260, 25720804520]

約数ペア:

[(1, 25720804520), (2, 12860402260), (4, 6430201130), (5, 5144160904), (8, 3215100565), (10, 2572080452), (20, 1286040226), (40, 643020113), (47, 547251160), (94, 273625580), (188, 136812790), (235, 109450232), (376, 68406395), (470, 54725116), (769, 33447080), (940, 27362558), (1538, 16723540), (1880, 13681279), (3076, 8361770), (3845, 6689416), (6152, 4180885), (7690, 3344708), (15380, 1672354), (17791, 1445720), (30760, 836177), (35582, 722860), (36143, 711640), (71164, 361430), (72286, 355820), (88955, 289144), (142328, 180715), (144572, 177910)]