30628040

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{17807}}^1$

素因数の和:17861

約数の個数: 32

約数和(自身を含む): 70519680

約数和(自身を除く): 39891640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 17807, 35614, 71228, 89035, 142456, 178070, 356140, 712280, 765701, 1531402, 3062804, 3828505, 6125608, 7657010, 15314020, 30628040]

約数ペア:

[(1, 30628040), (2, 15314020), (4, 7657010), (5, 6125608), (8, 3828505), (10, 3062804), (20, 1531402), (40, 765701), (43, 712280), (86, 356140), (172, 178070), (215, 142456), (344, 89035), (430, 71228), (860, 35614), (1720, 17807)]