19966415

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1459}}^1$

素因数の和:1511

約数の個数: 32

約数和(自身を含む): 30274560

約数和(自身を除く): 10308145

約数列:

[1, 5, 7, 17, 23, 35, 85, 115, 119, 161, 391, 595, 805, 1459, 1955, 2737, 7295, 10213, 13685, 24803, 33557, 51065, 124015, 167785, 173621, 234899, 570469, 868105, 1174495, 2852345, 3993283, 19966415]

約数ペア:

[(1, 19966415), (5, 3993283), (7, 2852345), (17, 1174495), (23, 868105), (35, 570469), (85, 234899), (115, 173621), (119, 167785), (161, 124015), (391, 51065), (595, 33557), (805, 24803), (1459, 13685), (1955, 10213), (2737, 7295)]