40445540

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{18553}}^1$

素因数の和:18671

約数の個数: 24

約数和(自身を含む): 85719480

約数和(自身を除く): 45273940

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 18553, 37106, 74212, 92765, 185530, 371060, 2022277, 4044554, 8089108, 10111385, 20222770, 40445540]

約数ペア:

[(1, 40445540), (2, 20222770), (4, 10111385), (5, 8089108), (10, 4044554), (20, 2022277), (109, 371060), (218, 185530), (436, 92765), (545, 74212), (1090, 37106), (2180, 18553)]