18206510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{1307}}^1$

素因数の和:1520

約数の個数: 32

約数和(自身を含む): 37670400

約数和(自身を除く): 19463890

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 199, 398, 995, 1307, 1393, 1990, 2614, 2786, 6535, 6965, 9149, 13070, 13930, 18298, 45745, 91490, 260093, 520186, 1300465, 1820651, 2600930, 3641302, 9103255, 18206510]

約数ペア:

[(1, 18206510), (2, 9103255), (5, 3641302), (7, 2600930), (10, 1820651), (14, 1300465), (35, 520186), (70, 260093), (199, 91490), (398, 45745), (995, 18298), (1307, 13930), (1393, 13070), (1990, 9149), (2614, 6965), (2786, 6535)]