1977339140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{2017693}}^1$

素因数の和:2017716

約数の個数: 36

約数和(自身を含む): 4830359436

約数和(自身を除く): 2853020296

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 2017693, 4035386, 8070772, 10088465, 14123851, 20176930, 28247702, 40353860, 56495404, 70619255, 98866957, 141238510, 197733914, 282477020, 395467828, 494334785, 988669570, 1977339140]

約数ペア:

[(1, 1977339140), (2, 988669570), (4, 494334785), (5, 395467828), (7, 282477020), (10, 197733914), (14, 141238510), (20, 98866957), (28, 70619255), (35, 56495404), (49, 40353860), (70, 28247702), (98, 20176930), (140, 14123851), (196, 10088465), (245, 8070772), (490, 4035386), (980, 2017693)]