20334580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{337}}^1\times {\mathrm{431}}^1$

素因数の和:784

約数の個数: 48

約数和(自身を含む): 49061376

約数和(自身を除く): 28726796

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 337, 431, 674, 862, 1348, 1685, 1724, 2155, 2359, 3017, 3370, 4310, 4718, 6034, 6740, 8620, 9436, 11795, 12068, 15085, 23590, 30170, 47180, 60340, 145247, 290494, 580988, 726235, 1016729, 1452470, 2033458, 2904940, 4066916, 5083645, 10167290, 20334580]

約数ペア:

[(1, 20334580), (2, 10167290), (4, 5083645), (5, 4066916), (7, 2904940), (10, 2033458), (14, 1452470), (20, 1016729), (28, 726235), (35, 580988), (70, 290494), (140, 145247), (337, 60340), (431, 47180), (674, 30170), (862, 23590), (1348, 15085), (1685, 12068), (1724, 11795), (2155, 9436), (2359, 8620), (3017, 6740), (3370, 6034), (4310, 4718)]