201998920

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{174137}}^1$

素因数の和:174177

約数の個数: 32

約数和(自身を含む): 470172600

約数和(自身を除く): 268173680

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 174137, 348274, 696548, 870685, 1393096, 1741370, 3482740, 5049973, 6965480, 10099946, 20199892, 25249865, 40399784, 50499730, 100999460, 201998920]

約数ペア:

[(1, 201998920), (2, 100999460), (4, 50499730), (5, 40399784), (8, 25249865), (10, 20199892), (20, 10099946), (29, 6965480), (40, 5049973), (58, 3482740), (116, 1741370), (145, 1393096), (232, 870685), (290, 696548), (580, 348274), (1160, 174137)]