20414500

素因数分解:

$2^2\times 5^3\times {\mathrm{40829}}^1$

素因数の和:40848

約数の個数: 24

約数和(自身を含む): 44586360

約数和(自身を除く): 24171860

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 40829, 81658, 163316, 204145, 408290, 816580, 1020725, 2041450, 4082900, 5103625, 10207250, 20414500]

約数ペア:

[(1, 20414500), (2, 10207250), (4, 5103625), (5, 4082900), (10, 2041450), (20, 1020725), (25, 816580), (50, 408290), (100, 204145), (125, 163316), (250, 81658), (500, 40829)]