201994640

素因数分解:

$2^4\times 5^1\times {\mathrm{1021}}^1\times {\mathrm{2473}}^1$

素因数の和:3507

約数の個数: 40

約数和(自身を含む): 470287608

約数和(自身を除く): 268292968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1021, 2042, 2473, 4084, 4946, 5105, 8168, 9892, 10210, 12365, 16336, 19784, 20420, 24730, 39568, 40840, 49460, 81680, 98920, 197840, 2524933, 5049866, 10099732, 12624665, 20199464, 25249330, 40398928, 50498660, 100997320, 201994640]

約数ペア:

[(1, 201994640), (2, 100997320), (4, 50498660), (5, 40398928), (8, 25249330), (10, 20199464), (16, 12624665), (20, 10099732), (40, 5049866), (80, 2524933), (1021, 197840), (2042, 98920), (2473, 81680), (4084, 49460), (4946, 40840), (5105, 39568), (8168, 24730), (9892, 20420), (10210, 19784), (12365, 16336)]