697998470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{26981}}^1$

素因数の和:27200

約数の個数: 32

約数和(自身を含む): 1359892800

約数和(自身を除く): 661894330

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 199, 398, 995, 1990, 2587, 5174, 12935, 25870, 26981, 53962, 134905, 269810, 350753, 701506, 1753765, 3507530, 5369219, 10738438, 26846095, 53692190, 69799847, 139599694, 348999235, 697998470]

約数ペア:

[(1, 697998470), (2, 348999235), (5, 139599694), (10, 69799847), (13, 53692190), (26, 26846095), (65, 10738438), (130, 5369219), (199, 3507530), (398, 1753765), (995, 701506), (1990, 350753), (2587, 269810), (5174, 134905), (12935, 53962), (25870, 26981)]