81937260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4507}}^1$

素因数の和:4623

約数の個数: 72

約数和(自身を含む): 251059536

約数和(自身を除く): 169122276

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 101, 180, 202, 303, 404, 505, 606, 909, 1010, 1212, 1515, 1818, 2020, 3030, 3636, 4507, 4545, 6060, 9014, 9090, 13521, 18028, 18180, 22535, 27042, 40563, 45070, 54084, 67605, 81126, 90140, 135210, 162252, 202815, 270420, 405630, 455207, 811260, 910414, 1365621, 1820828, 2276035, 2731242, 4096863, 4552070, 5462484, 6828105, 8193726, 9104140, 13656210, 16387452, 20484315, 27312420, 40968630, 81937260]

約数ペア:

[(1, 81937260), (2, 40968630), (3, 27312420), (4, 20484315), (5, 16387452), (6, 13656210), (9, 9104140), (10, 8193726), (12, 6828105), (15, 5462484), (18, 4552070), (20, 4096863), (30, 2731242), (36, 2276035), (45, 1820828), (60, 1365621), (90, 910414), (101, 811260), (180, 455207), (202, 405630), (303, 270420), (404, 202815), (505, 162252), (606, 135210), (909, 90140), (1010, 81126), (1212, 67605), (1515, 54084), (1818, 45070), (2020, 40563), (3030, 27042), (3636, 22535), (4507, 18180), (4545, 18028), (6060, 13521), (9014, 9090)]