19419968

素因数分解:

$2^6\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:247

約数の個数: 56

約数和(自身を含む): 40538400

約数和(自身を除く): 21118432

約数列:

[1, 2, 4, 8, 16, 32, 37, 59, 64, 74, 118, 139, 148, 236, 278, 296, 472, 556, 592, 944, 1112, 1184, 1888, 2183, 2224, 2368, 3776, 4366, 4448, 5143, 8201, 8732, 8896, 10286, 16402, 17464, 20572, 32804, 34928, 41144, 65608, 69856, 82288, 131216, 139712, 164576, 262432, 303437, 329152, 524864, 606874, 1213748, 2427496, 4854992, 9709984, 19419968]

約数ペア:

[(1, 19419968), (2, 9709984), (4, 4854992), (8, 2427496), (16, 1213748), (32, 606874), (37, 524864), (59, 329152), (64, 303437), (74, 262432), (118, 164576), (139, 139712), (148, 131216), (236, 82288), (278, 69856), (296, 65608), (472, 41144), (556, 34928), (592, 32804), (944, 20572), (1112, 17464), (1184, 16402), (1888, 10286), (2183, 8896), (2224, 8732), (2368, 8201), (3776, 5143), (4366, 4448)]