18800272

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{61843}}^1$

素因数の和:61870

約数の個数: 20

約数和(自身を含む): 38343280

約数和(自身を除く): 19543008

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 61843, 123686, 247372, 494744, 989488, 1175017, 2350034, 4700068, 9400136, 18800272]

約数ペア:

[(1, 18800272), (2, 9400136), (4, 4700068), (8, 2350034), (16, 1175017), (19, 989488), (38, 494744), (76, 247372), (152, 123686), (304, 61843)]