20544380

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{9973}}^1$

素因数の和:10085

約数の個数: 24

約数和(自身を含む): 43566432

約数和(自身を除く): 23022052

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 9973, 19946, 39892, 49865, 99730, 199460, 1027219, 2054438, 4108876, 5136095, 10272190, 20544380]

約数ペア:

[(1, 20544380), (2, 10272190), (4, 5136095), (5, 4108876), (10, 2054438), (20, 1027219), (103, 199460), (206, 99730), (412, 49865), (515, 39892), (1030, 19946), (2060, 9973)]