18062840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{263}}^1$

素因数の和:392

約数の個数: 64

約数和(自身を含む): 43623360

約数和(自身を除く): 25560520

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 101, 136, 170, 202, 263, 340, 404, 505, 526, 680, 808, 1010, 1052, 1315, 1717, 2020, 2104, 2630, 3434, 4040, 4471, 5260, 6868, 8585, 8942, 10520, 13736, 17170, 17884, 22355, 26563, 34340, 35768, 44710, 53126, 68680, 89420, 106252, 132815, 178840, 212504, 265630, 451571, 531260, 903142, 1062520, 1806284, 2257855, 3612568, 4515710, 9031420, 18062840]

約数ペア:

[(1, 18062840), (2, 9031420), (4, 4515710), (5, 3612568), (8, 2257855), (10, 1806284), (17, 1062520), (20, 903142), (34, 531260), (40, 451571), (68, 265630), (85, 212504), (101, 178840), (136, 132815), (170, 106252), (202, 89420), (263, 68680), (340, 53126), (404, 44710), (505, 35768), (526, 34340), (680, 26563), (808, 22355), (1010, 17884), (1052, 17170), (1315, 13736), (1717, 10520), (2020, 8942), (2104, 8585), (2630, 6868), (3434, 5260), (4040, 4471)]