31453040

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3607}}^1$

素因数の和:3729

約数の個数: 40

約数和(自身を含む): 73819680

約数和(自身を除く): 42366640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 3607, 4360, 7214, 8720, 14428, 18035, 28856, 36070, 57712, 72140, 144280, 288560, 393163, 786326, 1572652, 1965815, 3145304, 3931630, 6290608, 7863260, 15726520, 31453040]

約数ペア:

[(1, 31453040), (2, 15726520), (4, 7863260), (5, 6290608), (8, 3931630), (10, 3145304), (16, 1965815), (20, 1572652), (40, 786326), (80, 393163), (109, 288560), (218, 144280), (436, 72140), (545, 57712), (872, 36070), (1090, 28856), (1744, 18035), (2180, 14428), (3607, 8720), (4360, 7214)]