20170990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{6131}}^1$

素因数の和:6192

約数の個数: 32

約数和(自身を含む): 42384384

約数和(自身を除く): 22213394

約数列:

[1, 2, 5, 7, 10, 14, 35, 47, 70, 94, 235, 329, 470, 658, 1645, 3290, 6131, 12262, 30655, 42917, 61310, 85834, 214585, 288157, 429170, 576314, 1440785, 2017099, 2881570, 4034198, 10085495, 20170990]

約数ペア:

[(1, 20170990), (2, 10085495), (5, 4034198), (7, 2881570), (10, 2017099), (14, 1440785), (35, 576314), (47, 429170), (70, 288157), (94, 214585), (235, 85834), (329, 61310), (470, 42917), (658, 30655), (1645, 12262), (3290, 6131)]