18854860

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{9719}}^1$

素因数の和:9825

約数の個数: 24

約数和(自身を含む): 40007520

約数和(自身を除く): 21152660

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 9719, 19438, 38876, 48595, 97190, 194380, 942743, 1885486, 3770972, 4713715, 9427430, 18854860]

約数ペア:

[(1, 18854860), (2, 9427430), (4, 4713715), (5, 3770972), (10, 1885486), (20, 942743), (97, 194380), (194, 97190), (388, 48595), (485, 38876), (970, 19438), (1940, 9719)]