20156254815

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{358429}}^1$

素因数の和:358623

約数の個数: 32

約数和(自身を含む): 33858731520

約数和(自身を除く): 13702476705

約数列:

[1, 3, 5, 15, 23, 69, 115, 163, 345, 489, 815, 2445, 3749, 11247, 18745, 56235, 358429, 1075287, 1792145, 5376435, 8243867, 24731601, 41219335, 58423927, 123658005, 175271781, 292119635, 876358905, 1343750321, 4031250963, 6718751605, 20156254815]

約数ペア:

[(1, 20156254815), (3, 6718751605), (5, 4031250963), (15, 1343750321), (23, 876358905), (69, 292119635), (115, 175271781), (163, 123658005), (345, 58423927), (489, 41219335), (815, 24731601), (2445, 8243867), (3749, 5376435), (11247, 1792145), (18745, 1075287), (56235, 358429)]