20292428

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1$

素因数の和:306

約数の個数: 48

約数和(自身を含む): 40219200

約数和(自身を除く): 19926772

約数列:

[1, 2, 4, 13, 26, 37, 52, 53, 74, 106, 148, 199, 212, 398, 481, 689, 796, 962, 1378, 1924, 1961, 2587, 2756, 3922, 5174, 7363, 7844, 10348, 10547, 14726, 21094, 25493, 29452, 42188, 50986, 95719, 101972, 137111, 191438, 274222, 382876, 390239, 548444, 780478, 1560956, 5073107, 10146214, 20292428]

約数ペア:

[(1, 20292428), (2, 10146214), (4, 5073107), (13, 1560956), (26, 780478), (37, 548444), (52, 390239), (53, 382876), (74, 274222), (106, 191438), (148, 137111), (199, 101972), (212, 95719), (398, 50986), (481, 42188), (689, 29452), (796, 25493), (962, 21094), (1378, 14726), (1924, 10547), (1961, 10348), (2587, 7844), (2756, 7363), (3922, 5174)]