208031018

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{1297}}^1$

素因数の和:1542

約数の個数: 32

約数和(自身を含む): 348902400

約数和(自身を除く): 140871382

約数列:

[1, 2, 13, 26, 31, 62, 199, 398, 403, 806, 1297, 2587, 2594, 5174, 6169, 12338, 16861, 33722, 40207, 80197, 80414, 160394, 258103, 516206, 522691, 1045382, 3355339, 6710678, 8001193, 16002386, 104015509, 208031018]

約数ペア:

[(1, 208031018), (2, 104015509), (13, 16002386), (26, 8001193), (31, 6710678), (62, 3355339), (199, 1045382), (398, 522691), (403, 516206), (806, 258103), (1297, 160394), (2587, 80414), (2594, 80197), (5174, 40207), (6169, 33722), (12338, 16861)]