38897780

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{3821}}^1$

素因数の和:4339

約数の個数: 24

約数和(自身を含む): 81867240

約数和(自身を除く): 42969460

約数列:

[1, 2, 4, 5, 10, 20, 509, 1018, 2036, 2545, 3821, 5090, 7642, 10180, 15284, 19105, 38210, 76420, 1944889, 3889778, 7779556, 9724445, 19448890, 38897780]

約数ペア:

[(1, 38897780), (2, 19448890), (4, 9724445), (5, 7779556), (10, 3889778), (20, 1944889), (509, 76420), (1018, 38210), (2036, 19105), (2545, 15284), (3821, 10180), (5090, 7642)]