40031120

素因数分解:

$2^4\times 5^1\times {\mathrm{500389}}^1$

素因数の和:500402

約数の個数: 20

約数和(自身を含む): 93072540

約数和(自身を除く): 53041420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 500389, 1000778, 2001556, 2501945, 4003112, 5003890, 8006224, 10007780, 20015560, 40031120]

約数ペア:

[(1, 40031120), (2, 20015560), (4, 10007780), (5, 8006224), (8, 5003890), (10, 4003112), (16, 2501945), (20, 2001556), (40, 1000778), (80, 500389)]