205389940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{7681}}^1$

素因数の和:7888

約数の個数: 48

約数和(自身を含む): 495581184

約数和(自身を除く): 290191244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 191, 382, 764, 955, 1337, 1910, 2674, 3820, 5348, 6685, 7681, 13370, 15362, 26740, 30724, 38405, 53767, 76810, 107534, 153620, 215068, 268835, 537670, 1075340, 1467071, 2934142, 5868284, 7335355, 10269497, 14670710, 20538994, 29341420, 41077988, 51347485, 102694970, 205389940]

約数ペア:

[(1, 205389940), (2, 102694970), (4, 51347485), (5, 41077988), (7, 29341420), (10, 20538994), (14, 14670710), (20, 10269497), (28, 7335355), (35, 5868284), (70, 2934142), (140, 1467071), (191, 1075340), (382, 537670), (764, 268835), (955, 215068), (1337, 153620), (1910, 107534), (2674, 76810), (3820, 53767), (5348, 38405), (6685, 30724), (7681, 26740), (13370, 15362)]