678797980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{692651}}^1$

素因数の和:692674

約数の個数: 36

約数和(自身を含む): 1658208888

約数和(自身を除く): 979410908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 692651, 1385302, 2770604, 3463255, 4848557, 6926510, 9697114, 13853020, 19394228, 24242785, 33939899, 48485570, 67879798, 96971140, 135759596, 169699495, 339398990, 678797980]

約数ペア:

[(1, 678797980), (2, 339398990), (4, 169699495), (5, 135759596), (7, 96971140), (10, 67879798), (14, 48485570), (20, 33939899), (28, 24242785), (35, 19394228), (49, 13853020), (70, 9697114), (98, 6926510), (140, 4848557), (196, 3463255), (245, 2770604), (490, 1385302), (980, 692651)]