81518918

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{839}}^1$

素因数の和:992

約数の個数: 32

約数和(自身を含む): 136745280

約数和(自身を除く): 55226362

約数列:

[1, 2, 13, 26, 37, 74, 101, 202, 481, 839, 962, 1313, 1678, 2626, 3737, 7474, 10907, 21814, 31043, 48581, 62086, 84739, 97162, 169478, 403559, 807118, 1101607, 2203214, 3135343, 6270686, 40759459, 81518918]

約数ペア:

[(1, 81518918), (2, 40759459), (13, 6270686), (26, 3135343), (37, 2203214), (74, 1101607), (101, 807118), (202, 403559), (481, 169478), (839, 97162), (962, 84739), (1313, 62086), (1678, 48581), (2626, 31043), (3737, 21814), (7474, 10907)]