31034480

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3559}}^1$

素因数の和:3681

約数の個数: 40

約数和(自身を含む): 72837600

約数和(自身を除く): 41803120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 3559, 4360, 7118, 8720, 14236, 17795, 28472, 35590, 56944, 71180, 142360, 284720, 387931, 775862, 1551724, 1939655, 3103448, 3879310, 6206896, 7758620, 15517240, 31034480]

約数ペア:

[(1, 31034480), (2, 15517240), (4, 7758620), (5, 6206896), (8, 3879310), (10, 3103448), (16, 1939655), (20, 1551724), (40, 775862), (80, 387931), (109, 284720), (218, 142360), (436, 71180), (545, 56944), (872, 35590), (1090, 28472), (1744, 17795), (2180, 14236), (3559, 8720), (4360, 7118)]