1490399995

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{52121}}^1$

素因数の和:52195

約数の個数: 32

約数和(自身を含む): 2201633280

約数和(自身を除く): 711233285

約数列:

[1, 5, 7, 19, 35, 43, 95, 133, 215, 301, 665, 817, 1505, 4085, 5719, 28595, 52121, 260605, 364847, 990299, 1824235, 2241203, 4951495, 6932093, 11206015, 15688421, 34660465, 42582857, 78442105, 212914285, 298079999, 1490399995]

約数ペア:

[(1, 1490399995), (5, 298079999), (7, 212914285), (19, 78442105), (35, 42582857), (43, 34660465), (95, 15688421), (133, 11206015), (215, 6932093), (301, 4951495), (665, 2241203), (817, 1824235), (1505, 990299), (4085, 364847), (5719, 260605), (28595, 52121)]