1280491816

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{132611}}^1$

素因数の和:132705

約数の個数: 32

約数和(自身を含む): 2577977280

約数和(自身を除く): 1297485464

約数列:

[1, 2, 4, 8, 17, 34, 68, 71, 136, 142, 284, 568, 1207, 2414, 4828, 9656, 132611, 265222, 530444, 1060888, 2254387, 4508774, 9017548, 9415381, 18035096, 18830762, 37661524, 75323048, 160061477, 320122954, 640245908, 1280491816]

約数ペア:

[(1, 1280491816), (2, 640245908), (4, 320122954), (8, 160061477), (17, 75323048), (34, 37661524), (68, 18830762), (71, 18035096), (136, 9415381), (142, 9017548), (284, 4508774), (568, 2254387), (1207, 1060888), (2414, 530444), (4828, 265222), (9656, 132611)]