20563450

素因数分解:

$2^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{4621}}^1$

素因数の和:4722

約数の個数: 24

約数和(自身を含む): 38686140

約数和(自身を除く): 18122690

約数列:

[1, 2, 5, 10, 25, 50, 89, 178, 445, 890, 2225, 4450, 4621, 9242, 23105, 46210, 115525, 231050, 411269, 822538, 2056345, 4112690, 10281725, 20563450]

約数ペア:

[(1, 20563450), (2, 10281725), (5, 4112690), (10, 2056345), (25, 822538), (50, 411269), (89, 231050), (178, 115525), (445, 46210), (890, 23105), (2225, 9242), (4450, 4621)]