19978070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{6961}}^1$

素因数の和:7016

約数の個数: 32

約数和(自身を含む): 42106176

約数和(自身を除く): 22128106

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 70, 82, 205, 287, 410, 574, 1435, 2870, 6961, 13922, 34805, 48727, 69610, 97454, 243635, 285401, 487270, 570802, 1427005, 1997807, 2854010, 3995614, 9989035, 19978070]

約数ペア:

[(1, 19978070), (2, 9989035), (5, 3995614), (7, 2854010), (10, 1997807), (14, 1427005), (35, 570802), (41, 487270), (70, 285401), (82, 243635), (205, 97454), (287, 69610), (410, 48727), (574, 34805), (1435, 13922), (2870, 6961)]