20884700

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{6737}}^1$

素因数の和:6782

約数の個数: 36

約数和(自身を含む): 46788672

約数和(自身を除く): 25903972

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 775, 1550, 3100, 6737, 13474, 26948, 33685, 67370, 134740, 168425, 208847, 336850, 417694, 673700, 835388, 1044235, 2088470, 4176940, 5221175, 10442350, 20884700]

約数ペア:

[(1, 20884700), (2, 10442350), (4, 5221175), (5, 4176940), (10, 2088470), (20, 1044235), (25, 835388), (31, 673700), (50, 417694), (62, 336850), (100, 208847), (124, 168425), (155, 134740), (310, 67370), (620, 33685), (775, 26948), (1550, 13474), (3100, 6737)]