219778420

素因数分解:

$2^2\times 5^1\times {\mathrm{2939}}^1\times {\mathrm{3739}}^1$

素因数の和:6687

約数の個数: 24

約数和(自身を含む): 461815200

約数和(自身を除く): 242036780

約数列:

[1, 2, 4, 5, 10, 20, 2939, 3739, 5878, 7478, 11756, 14695, 14956, 18695, 29390, 37390, 58780, 74780, 10988921, 21977842, 43955684, 54944605, 109889210, 219778420]

約数ペア:

[(1, 219778420), (2, 109889210), (4, 54944605), (5, 43955684), (10, 21977842), (20, 10988921), (2939, 74780), (3739, 58780), (5878, 37390), (7478, 29390), (11756, 18695), (14695, 14956)]