19913480

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{2083}}^1$

素因数の和:2333

約数の個数: 32

約数和(自身を含む): 45014400

約数和(自身を除く): 25100920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1912, 2083, 2390, 4166, 4780, 8332, 9560, 10415, 16664, 20830, 41660, 83320, 497837, 995674, 1991348, 2489185, 3982696, 4978370, 9956740, 19913480]

約数ペア:

[(1, 19913480), (2, 9956740), (4, 4978370), (5, 3982696), (8, 2489185), (10, 1991348), (20, 995674), (40, 497837), (239, 83320), (478, 41660), (956, 20830), (1195, 16664), (1912, 10415), (2083, 9560), (2390, 8332), (4166, 4780)]