198712610

素因数分解:

$2^1\times 5^1\times {\mathrm{491}}^1\times {\mathrm{40471}}^1$

素因数の和:40969

約数の個数: 16

約数和(自身を含む): 358420032

約数和(自身を除く): 159707422

約数列:

[1, 2, 5, 10, 491, 982, 2455, 4910, 40471, 80942, 202355, 404710, 19871261, 39742522, 99356305, 198712610]

約数ペア:

[(1, 198712610), (2, 99356305), (5, 39742522), (10, 19871261), (491, 404710), (982, 202355), (2455, 80942), (4910, 40471)]