20199771160

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{510611}}^1$

素因数の和:510688

約数の個数: 64

約数和(自身を含む): 48528564480

約数和(自身を除く): 28328793320

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 43, 46, 86, 92, 115, 172, 184, 215, 230, 344, 430, 460, 860, 920, 989, 1720, 1978, 3956, 4945, 7912, 9890, 19780, 39560, 510611, 1021222, 2042444, 2553055, 4084888, 5106110, 10212220, 11744053, 20424440, 21956273, 23488106, 43912546, 46976212, 58720265, 87825092, 93952424, 109781365, 117440530, 175650184, 219562730, 234881060, 439125460, 469762120, 504994279, 878250920, 1009988558, 2019977116, 2524971395, 4039954232, 5049942790, 10099885580, 20199771160]

約数ペア:

[(1, 20199771160), (2, 10099885580), (4, 5049942790), (5, 4039954232), (8, 2524971395), (10, 2019977116), (20, 1009988558), (23, 878250920), (40, 504994279), (43, 469762120), (46, 439125460), (86, 234881060), (92, 219562730), (115, 175650184), (172, 117440530), (184, 109781365), (215, 93952424), (230, 87825092), (344, 58720265), (430, 46976212), (460, 43912546), (860, 23488106), (920, 21956273), (989, 20424440), (1720, 11744053), (1978, 10212220), (3956, 5106110), (4945, 4084888), (7912, 2553055), (9890, 2042444), (19780, 1021222), (39560, 510611)]