20164577020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{894613}}^1$

素因数の和:894659

約数の個数: 72

約数和(自身を含む): 51400941984

約数和(自身を除く): 31236364964

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 49, 70, 92, 98, 115, 140, 161, 196, 230, 245, 322, 460, 490, 644, 805, 980, 1127, 1610, 2254, 3220, 4508, 5635, 11270, 22540, 894613, 1789226, 3578452, 4473065, 6262291, 8946130, 12524582, 17892260, 20576099, 25049164, 31311455, 41152198, 43836037, 62622910, 82304396, 87672074, 102880495, 125245820, 144032693, 175344148, 205760990, 219180185, 288065386, 411521980, 438360370, 576130772, 720163465, 876720740, 1008228851, 1440326930, 2016457702, 2880653860, 4032915404, 5041144255, 10082288510, 20164577020]

約数ペア:

[(1, 20164577020), (2, 10082288510), (4, 5041144255), (5, 4032915404), (7, 2880653860), (10, 2016457702), (14, 1440326930), (20, 1008228851), (23, 876720740), (28, 720163465), (35, 576130772), (46, 438360370), (49, 411521980), (70, 288065386), (92, 219180185), (98, 205760990), (115, 175344148), (140, 144032693), (161, 125245820), (196, 102880495), (230, 87672074), (245, 82304396), (322, 62622910), (460, 43836037), (490, 41152198), (644, 31311455), (805, 25049164), (980, 20576099), (1127, 17892260), (1610, 12524582), (2254, 8946130), (3220, 6262291), (4508, 4473065), (5635, 3578452), (11270, 1789226), (22540, 894613)]