7804780

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 17236800

約数和(自身を除く): 9432020

約数列:

[1, 2, 4, 5, 10, 20, 37, 53, 74, 106, 148, 185, 199, 212, 265, 370, 398, 530, 740, 796, 995, 1060, 1961, 1990, 3922, 3980, 7363, 7844, 9805, 10547, 14726, 19610, 21094, 29452, 36815, 39220, 42188, 52735, 73630, 105470, 147260, 210940, 390239, 780478, 1560956, 1951195, 3902390, 7804780]

約数ペア:

[(1, 7804780), (2, 3902390), (4, 1951195), (5, 1560956), (10, 780478), (20, 390239), (37, 210940), (53, 147260), (74, 105470), (106, 73630), (148, 52735), (185, 42188), (199, 39220), (212, 36815), (265, 29452), (370, 21094), (398, 19610), (530, 14726), (740, 10547), (796, 9805), (995, 7844), (1060, 7363), (1961, 3980), (1990, 3922)]