220176675

素因数分解:

$3^2\times 5^2\times {\mathrm{491}}^1\times {\mathrm{1993}}^1$

素因数の和:2500

約数の個数: 36

約数和(自身を含む): 395362344

約数和(自身を除く): 175185669

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 491, 1473, 1993, 2455, 4419, 5979, 7365, 9965, 12275, 17937, 22095, 29895, 36825, 49825, 89685, 110475, 149475, 448425, 978563, 2935689, 4892815, 8807067, 14678445, 24464075, 44035335, 73392225, 220176675]

約数ペア:

[(1, 220176675), (3, 73392225), (5, 44035335), (9, 24464075), (15, 14678445), (25, 8807067), (45, 4892815), (75, 2935689), (225, 978563), (491, 448425), (1473, 149475), (1993, 110475), (2455, 89685), (4419, 49825), (5979, 36825), (7365, 29895), (9965, 22095), (12275, 17937)]