81993780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41411}}^1$

素因数の和:41437

約数の個数: 72

約数和(自身を含む): 271331424

約数和(自身を除く): 189337644

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 41411, 82822, 124233, 165644, 207055, 248466, 372699, 414110, 455521, 496932, 621165, 745398, 828220, 911042, 1242330, 1366563, 1490796, 1822084, 1863495, 2277605, 2484660, 2733126, 3726990, 4099689, 4555210, 5466252, 6832815, 7453980, 8199378, 9110420, 13665630, 16398756, 20498445, 27331260, 40996890, 81993780]

約数ペア:

[(1, 81993780), (2, 40996890), (3, 27331260), (4, 20498445), (5, 16398756), (6, 13665630), (9, 9110420), (10, 8199378), (11, 7453980), (12, 6832815), (15, 5466252), (18, 4555210), (20, 4099689), (22, 3726990), (30, 2733126), (33, 2484660), (36, 2277605), (44, 1863495), (45, 1822084), (55, 1490796), (60, 1366563), (66, 1242330), (90, 911042), (99, 828220), (110, 745398), (132, 621165), (165, 496932), (180, 455521), (198, 414110), (220, 372699), (330, 248466), (396, 207055), (495, 165644), (660, 124233), (990, 82822), (1980, 41411)]