19806220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6151}}^1$

素因数の和:6190

約数の個数: 48

約数和(自身を含む): 49609728

約数和(自身を除く): 29803508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 6151, 12302, 24604, 30755, 43057, 61510, 86114, 123020, 141473, 172228, 215285, 282946, 430570, 565892, 707365, 861140, 990311, 1414730, 1980622, 2829460, 3961244, 4951555, 9903110, 19806220]

約数ペア:

[(1, 19806220), (2, 9903110), (4, 4951555), (5, 3961244), (7, 2829460), (10, 1980622), (14, 1414730), (20, 990311), (23, 861140), (28, 707365), (35, 565892), (46, 430570), (70, 282946), (92, 215285), (115, 172228), (140, 141473), (161, 123020), (230, 86114), (322, 61510), (460, 43057), (644, 30755), (805, 24604), (1610, 12302), (3220, 6151)]