20156912

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{30727}}^1$

素因数の和:30776

約数の個数: 20

約数和(自身を含む): 40007856

約数和(自身を除く): 19850944

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 30727, 61454, 122908, 245816, 491632, 1259807, 2519614, 5039228, 10078456, 20156912]

約数ペア:

[(1, 20156912), (2, 10078456), (4, 5039228), (8, 2519614), (16, 1259807), (41, 491632), (82, 245816), (164, 122908), (328, 61454), (656, 30727)]