20010201820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{661}}^1\times {\mathrm{216233}}^1$

素因数の和:216910

約数の個数: 48

約数和(自身を含む): 48097361088

約数和(自身を除く): 28087159268

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 661, 1322, 2644, 3305, 4627, 6610, 9254, 13220, 18508, 23135, 46270, 92540, 216233, 432466, 864932, 1081165, 1513631, 2162330, 3027262, 4324660, 6054524, 7568155, 15136310, 30272620, 142930013, 285860026, 571720052, 714650065, 1000510091, 1429300130, 2001020182, 2858600260, 4002040364, 5002550455, 10005100910, 20010201820]

約数ペア:

[(1, 20010201820), (2, 10005100910), (4, 5002550455), (5, 4002040364), (7, 2858600260), (10, 2001020182), (14, 1429300130), (20, 1000510091), (28, 714650065), (35, 571720052), (70, 285860026), (140, 142930013), (661, 30272620), (1322, 15136310), (2644, 7568155), (3305, 6054524), (4627, 4324660), (6610, 3027262), (9254, 2162330), (13220, 1513631), (18508, 1081165), (23135, 864932), (46270, 432466), (92540, 216233)]