20468584

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{233}}^1$

素因数の和:457

約数の個数: 32

約数和(自身を含む): 39312000

約数和(自身を除く): 18843416

約数列:

[1, 2, 4, 8, 79, 139, 158, 233, 278, 316, 466, 556, 632, 932, 1112, 1864, 10981, 18407, 21962, 32387, 36814, 43924, 64774, 73628, 87848, 129548, 147256, 259096, 2558573, 5117146, 10234292, 20468584]

約数ペア:

[(1, 20468584), (2, 10234292), (4, 5117146), (8, 2558573), (79, 259096), (139, 147256), (158, 129548), (233, 87848), (278, 73628), (316, 64774), (466, 43924), (556, 36814), (632, 32387), (932, 21962), (1112, 18407), (1864, 10981)]