81172892

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{223}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 155457792

約数和(自身を除く): 74284900

約数列:

[1, 2, 4, 17, 34, 53, 68, 101, 106, 202, 212, 223, 404, 446, 892, 901, 1717, 1802, 3434, 3604, 3791, 5353, 6868, 7582, 10706, 11819, 15164, 21412, 22523, 23638, 45046, 47276, 90092, 91001, 182002, 200923, 364004, 382891, 401846, 765782, 803692, 1193719, 1531564, 2387438, 4774876, 20293223, 40586446, 81172892]

約数ペア:

[(1, 81172892), (2, 40586446), (4, 20293223), (17, 4774876), (34, 2387438), (53, 1531564), (68, 1193719), (101, 803692), (106, 765782), (202, 401846), (212, 382891), (223, 364004), (404, 200923), (446, 182002), (892, 91001), (901, 90092), (1717, 47276), (1802, 45046), (3434, 23638), (3604, 22523), (3791, 21412), (5353, 15164), (6868, 11819), (7582, 10706)]