2009440

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{661}}^1$

素因数の和:695

約数の個数: 48

約数和(自身を含む): 5004720

約数和(自身を除く): 2995280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 661, 760, 1322, 1520, 2644, 3040, 3305, 5288, 6610, 10576, 12559, 13220, 21152, 25118, 26440, 50236, 52880, 62795, 100472, 105760, 125590, 200944, 251180, 401888, 502360, 1004720, 2009440]

約数ペア:

[(1, 2009440), (2, 1004720), (4, 502360), (5, 401888), (8, 251180), (10, 200944), (16, 125590), (19, 105760), (20, 100472), (32, 62795), (38, 52880), (40, 50236), (76, 26440), (80, 25118), (95, 21152), (152, 13220), (160, 12559), (190, 10576), (304, 6610), (380, 5288), (608, 3305), (661, 3040), (760, 2644), (1322, 1520)]