57141980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{947}}^1$

素因数の和:1394

約数の個数: 48

約数和(自身を含む): 137604096

約数和(自身を除く): 80462116

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 431, 862, 947, 1724, 1894, 2155, 3017, 3788, 4310, 4735, 6034, 6629, 8620, 9470, 12068, 13258, 15085, 18940, 26516, 30170, 33145, 60340, 66290, 132580, 408157, 816314, 1632628, 2040785, 2857099, 4081570, 5714198, 8163140, 11428396, 14285495, 28570990, 57141980]

約数ペア:

[(1, 57141980), (2, 28570990), (4, 14285495), (5, 11428396), (7, 8163140), (10, 5714198), (14, 4081570), (20, 2857099), (28, 2040785), (35, 1632628), (70, 816314), (140, 408157), (431, 132580), (862, 66290), (947, 60340), (1724, 33145), (1894, 30170), (2155, 26516), (3017, 18940), (3788, 15085), (4310, 13258), (4735, 12068), (6034, 9470), (6629, 8620)]