19567420

素因数分解:

$2^2\times 5^1\times {\mathrm{449}}^1\times {\mathrm{2179}}^1$

素因数の和:2637

約数の個数: 24

約数和(自身を含む): 41202000

約数和(自身を除く): 21634580

約数列:

[1, 2, 4, 5, 10, 20, 449, 898, 1796, 2179, 2245, 4358, 4490, 8716, 8980, 10895, 21790, 43580, 978371, 1956742, 3913484, 4891855, 9783710, 19567420]

約数ペア:

[(1, 19567420), (2, 9783710), (4, 4891855), (5, 3913484), (10, 1956742), (20, 978371), (449, 43580), (898, 21790), (1796, 10895), (2179, 8980), (2245, 8716), (4358, 4490)]