1280912816

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{102769}}^1$

素因数の和:102837

約数の個数: 40

約数和(自身を含む): 2676130800

約数和(自身を除く): 1395217984

約数列:

[1, 2, 4, 8, 16, 19, 38, 41, 76, 82, 152, 164, 304, 328, 656, 779, 1558, 3116, 6232, 12464, 102769, 205538, 411076, 822152, 1644304, 1952611, 3905222, 4213529, 7810444, 8427058, 15620888, 16854116, 31241776, 33708232, 67416464, 80057051, 160114102, 320228204, 640456408, 1280912816]

約数ペア:

[(1, 1280912816), (2, 640456408), (4, 320228204), (8, 160114102), (16, 80057051), (19, 67416464), (38, 33708232), (41, 31241776), (76, 16854116), (82, 15620888), (152, 8427058), (164, 7810444), (304, 4213529), (328, 3905222), (656, 1952611), (779, 1644304), (1558, 822152), (3116, 411076), (6232, 205538), (12464, 102769)]