1891567390

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{2687}}^1$

素因数の和:2853

約数の個数: 64

約数和(自身を含む): 3730987008

約数和(自身を除く): 1839419618

約数列:

[1, 2, 5, 10, 17, 34, 41, 82, 85, 101, 170, 202, 205, 410, 505, 697, 1010, 1394, 1717, 2687, 3434, 3485, 4141, 5374, 6970, 8282, 8585, 13435, 17170, 20705, 26870, 41410, 45679, 70397, 91358, 110167, 140794, 220334, 228395, 271387, 351985, 456790, 542774, 550835, 703970, 1101670, 1356935, 1872839, 2713870, 3745678, 4613579, 9227158, 9364195, 11126867, 18728390, 22253734, 23067895, 46135790, 55634335, 111268670, 189156739, 378313478, 945783695, 1891567390]

約数ペア:

[(1, 1891567390), (2, 945783695), (5, 378313478), (10, 189156739), (17, 111268670), (34, 55634335), (41, 46135790), (82, 23067895), (85, 22253734), (101, 18728390), (170, 11126867), (202, 9364195), (205, 9227158), (410, 4613579), (505, 3745678), (697, 2713870), (1010, 1872839), (1394, 1356935), (1717, 1101670), (2687, 703970), (3434, 550835), (3485, 542774), (4141, 456790), (5374, 351985), (6970, 271387), (8282, 228395), (8585, 220334), (13435, 140794), (17170, 110167), (20705, 91358), (26870, 70397), (41410, 45679)]