19976420

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43427}}^1$

素因数の和:43459

約数の個数: 24

約数和(自身を含む): 43775424

約数和(自身を除く): 23799004

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 43427, 86854, 173708, 217135, 434270, 868540, 998821, 1997642, 3995284, 4994105, 9988210, 19976420]

約数ペア:

[(1, 19976420), (2, 9988210), (4, 4994105), (5, 3995284), (10, 1997642), (20, 998821), (23, 868540), (46, 434270), (92, 217135), (115, 173708), (230, 86854), (460, 43427)]