19900732

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{887}}^1$

素因数の和:1041

約数の個数: 24

約数和(自身を含む): 35804160

約数和(自身を除く): 15903428

約数列:

[1, 2, 4, 71, 79, 142, 158, 284, 316, 887, 1774, 3548, 5609, 11218, 22436, 62977, 70073, 125954, 140146, 251908, 280292, 4975183, 9950366, 19900732]

約数ペア:

[(1, 19900732), (2, 9950366), (4, 4975183), (71, 280292), (79, 251908), (142, 140146), (158, 125954), (284, 70073), (316, 62977), (887, 22436), (1774, 11218), (3548, 5609)]