20187340

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{16547}}^1$

素因数の和:16617

約数の個数: 24

約数和(自身を含む): 43090992

約数和(自身を除く): 22903652

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 16547, 33094, 66188, 82735, 165470, 330940, 1009367, 2018734, 4037468, 5046835, 10093670, 20187340]

約数ペア:

[(1, 20187340), (2, 10093670), (4, 5046835), (5, 4037468), (10, 2018734), (20, 1009367), (61, 330940), (122, 165470), (244, 82735), (305, 66188), (610, 33094), (1220, 16547)]