20980178590

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{995737}}^1$

素因数の和:995801

約数の個数: 48

約数和(自身を含む): 44951596272

約数和(自身を除く): 23971417682

約数列:

[1, 2, 5, 7, 10, 14, 35, 43, 49, 70, 86, 98, 215, 245, 301, 430, 490, 602, 1505, 2107, 3010, 4214, 10535, 21070, 995737, 1991474, 4978685, 6970159, 9957370, 13940318, 34850795, 42816691, 48791113, 69701590, 85633382, 97582226, 214083455, 243955565, 299716837, 428166910, 487911130, 599433674, 1498584185, 2098017859, 2997168370, 4196035718, 10490089295, 20980178590]

約数ペア:

[(1, 20980178590), (2, 10490089295), (5, 4196035718), (7, 2997168370), (10, 2098017859), (14, 1498584185), (35, 599433674), (43, 487911130), (49, 428166910), (70, 299716837), (86, 243955565), (98, 214083455), (215, 97582226), (245, 85633382), (301, 69701590), (430, 48791113), (490, 42816691), (602, 34850795), (1505, 13940318), (2107, 9957370), (3010, 6970159), (4214, 4978685), (10535, 1991474), (21070, 995737)]