19790864

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{30169}}^1$

素因数の和:30218

約数の個数: 20

約数和(自身を含む): 39281340

約数和(自身を除く): 19490476

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 30169, 60338, 120676, 241352, 482704, 1236929, 2473858, 4947716, 9895432, 19790864]

約数ペア:

[(1, 19790864), (2, 9895432), (4, 4947716), (8, 2473858), (16, 1236929), (41, 482704), (82, 241352), (164, 120676), (328, 60338), (656, 30169)]