40381040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{72109}}^1$

素因数の和:72129

約数の個数: 40

約数和(自身を含む): 107299680

約数和(自身を除く): 66918640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 72109, 144218, 288436, 360545, 504763, 576872, 721090, 1009526, 1153744, 1442180, 2019052, 2523815, 2884360, 4038104, 5047630, 5768720, 8076208, 10095260, 20190520, 40381040]

約数ペア:

[(1, 40381040), (2, 20190520), (4, 10095260), (5, 8076208), (7, 5768720), (8, 5047630), (10, 4038104), (14, 2884360), (16, 2523815), (20, 2019052), (28, 1442180), (35, 1153744), (40, 1009526), (56, 721090), (70, 576872), (80, 504763), (112, 360545), (140, 288436), (280, 144218), (560, 72109)]