389212240

素因数分解:

$2^4\times 5^1\times {\mathrm{1367}}^1\times {\mathrm{3559}}^1$

素因数の和:4939

約数の個数: 40

約数和(自身を含む): 905834880

約数和(自身を除く): 516622640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1367, 2734, 3559, 5468, 6835, 7118, 10936, 13670, 14236, 17795, 21872, 27340, 28472, 35590, 54680, 56944, 71180, 109360, 142360, 284720, 4865153, 9730306, 19460612, 24325765, 38921224, 48651530, 77842448, 97303060, 194606120, 389212240]

約数ペア:

[(1, 389212240), (2, 194606120), (4, 97303060), (5, 77842448), (8, 48651530), (10, 38921224), (16, 24325765), (20, 19460612), (40, 9730306), (80, 4865153), (1367, 284720), (2734, 142360), (3559, 109360), (5468, 71180), (6835, 56944), (7118, 54680), (10936, 35590), (13670, 28472), (14236, 27340), (17795, 21872)]