1557100840

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{193}}^1\times {\mathrm{1997}}^1$

素因数の和:2302

約数の個数: 64

約数和(自身を含む): 3558278160

約数和(自身を除く): 2001177320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 193, 202, 386, 404, 505, 772, 808, 965, 1010, 1544, 1930, 1997, 2020, 3860, 3994, 4040, 7720, 7988, 9985, 15976, 19493, 19970, 38986, 39940, 77972, 79880, 97465, 155944, 194930, 201697, 385421, 389860, 403394, 770842, 779720, 806788, 1008485, 1541684, 1613576, 1927105, 2016970, 3083368, 3854210, 4033940, 7708420, 8067880, 15416840, 38927521, 77855042, 155710084, 194637605, 311420168, 389275210, 778550420, 1557100840]

約数ペア:

[(1, 1557100840), (2, 778550420), (4, 389275210), (5, 311420168), (8, 194637605), (10, 155710084), (20, 77855042), (40, 38927521), (101, 15416840), (193, 8067880), (202, 7708420), (386, 4033940), (404, 3854210), (505, 3083368), (772, 2016970), (808, 1927105), (965, 1613576), (1010, 1541684), (1544, 1008485), (1930, 806788), (1997, 779720), (2020, 770842), (3860, 403394), (3994, 389860), (4040, 385421), (7720, 201697), (7988, 194930), (9985, 155944), (15976, 97465), (19493, 79880), (19970, 77972), (38986, 39940)]