40540700

素因数分解:

$2^2\times 5^2\times {\mathrm{405407}}^1$

素因数の和:405421

約数の個数: 18

約数和(自身を含む): 87973536

約数和(自身を除く): 47432836

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 405407, 810814, 1621628, 2027035, 4054070, 8108140, 10135175, 20270350, 40540700]

約数ペア:

[(1, 40540700), (2, 20270350), (4, 10135175), (5, 8108140), (10, 4054070), (20, 2027035), (25, 1621628), (50, 810814), (100, 405407)]