20355850

素因数分解:

$2^1\times 5^2\times {\mathrm{443}}^1\times {\mathrm{919}}^1$

素因数の和:1374

約数の個数: 24

約数和(自身を含む): 37988640

約数和(自身を除く): 17632790

約数列:

[1, 2, 5, 10, 25, 50, 443, 886, 919, 1838, 2215, 4430, 4595, 9190, 11075, 22150, 22975, 45950, 407117, 814234, 2035585, 4071170, 10177925, 20355850]

約数ペア:

[(1, 20355850), (2, 10177925), (5, 4071170), (10, 2035585), (25, 814234), (50, 407117), (443, 45950), (886, 22975), (919, 22150), (1838, 11075), (2215, 9190), (4430, 4595)]