20100842

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{61}}^2\times {\mathrm{73}}^1$

素因数の和:234

約数の個数: 24

約数和(自身を含む): 31913388

約数和(自身を除く): 11812546

約数列:

[1, 2, 37, 61, 73, 74, 122, 146, 2257, 2701, 3721, 4453, 4514, 5402, 7442, 8906, 137677, 164761, 271633, 275354, 329522, 543266, 10050421, 20100842]

約数ペア:

[(1, 20100842), (2, 10050421), (37, 543266), (61, 329522), (73, 275354), (74, 271633), (122, 164761), (146, 137677), (2257, 8906), (2701, 7442), (3721, 5402), (4453, 4514)]