199981795

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{2549}}^1$

素因数の和:2655

約数の個数: 32

約数和(自身を含む): 277603200

約数和(自身を除く): 77621405

約数列:

[1, 5, 13, 17, 65, 71, 85, 221, 355, 923, 1105, 1207, 2549, 4615, 6035, 12745, 15691, 33137, 43333, 78455, 165685, 180979, 216665, 563329, 904895, 2352727, 2816645, 3076643, 11763635, 15383215, 39996359, 199981795]

約数ペア:

[(1, 199981795), (5, 39996359), (13, 15383215), (17, 11763635), (65, 3076643), (71, 2816645), (85, 2352727), (221, 904895), (355, 563329), (923, 216665), (1105, 180979), (1207, 165685), (2549, 78455), (4615, 43333), (6035, 33137), (12745, 15691)]