20206890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20411}}^1$

素因数の和:20435

約数の個数: 48

約数和(自身を含む): 57316896

約数和(自身を除く): 37110006

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 20411, 40822, 61233, 102055, 122466, 183699, 204110, 224521, 306165, 367398, 449042, 612330, 673563, 918495, 1122605, 1347126, 1836990, 2020689, 2245210, 3367815, 4041378, 6735630, 10103445, 20206890]

約数ペア:

[(1, 20206890), (2, 10103445), (3, 6735630), (5, 4041378), (6, 3367815), (9, 2245210), (10, 2020689), (11, 1836990), (15, 1347126), (18, 1122605), (22, 918495), (30, 673563), (33, 612330), (45, 449042), (55, 367398), (66, 306165), (90, 224521), (99, 204110), (110, 183699), (165, 122466), (198, 102055), (330, 61233), (495, 40822), (990, 20411)]