20050304

素因数分解:

$2^7\times {\mathrm{31}}^2\times {\mathrm{163}}^1$

素因数の和:239

約数の個数: 48

約数和(自身を含む): 41527260

約数和(自身を除く): 21476956

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 163, 248, 326, 496, 652, 961, 992, 1304, 1922, 1984, 2608, 3844, 3968, 5053, 5216, 7688, 10106, 10432, 15376, 20212, 20864, 30752, 40424, 61504, 80848, 123008, 156643, 161696, 313286, 323392, 626572, 646784, 1253144, 2506288, 5012576, 10025152, 20050304]

約数ペア:

[(1, 20050304), (2, 10025152), (4, 5012576), (8, 2506288), (16, 1253144), (31, 646784), (32, 626572), (62, 323392), (64, 313286), (124, 161696), (128, 156643), (163, 123008), (248, 80848), (326, 61504), (496, 40424), (652, 30752), (961, 20864), (992, 20212), (1304, 15376), (1922, 10432), (1984, 10106), (2608, 7688), (3844, 5216), (3968, 5053)]