830017820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{809}}^1\times {\mathrm{1193}}^1$

素因数の和:2054

約数の個数: 48

約数和(自身を含む): 1787274720

約数和(自身を除く): 957256900

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 809, 860, 1193, 1618, 2386, 3236, 4045, 4772, 5965, 8090, 11930, 16180, 23860, 34787, 51299, 69574, 102598, 139148, 173935, 205196, 256495, 347870, 512990, 695740, 965137, 1025980, 1930274, 3860548, 4825685, 9651370, 19302740, 41500891, 83001782, 166003564, 207504455, 415008910, 830017820]

約数ペア:

[(1, 830017820), (2, 415008910), (4, 207504455), (5, 166003564), (10, 83001782), (20, 41500891), (43, 19302740), (86, 9651370), (172, 4825685), (215, 3860548), (430, 1930274), (809, 1025980), (860, 965137), (1193, 695740), (1618, 512990), (2386, 347870), (3236, 256495), (4045, 205196), (4772, 173935), (5965, 139148), (8090, 102598), (11930, 69574), (16180, 51299), (23860, 34787)]