20427700

素因数分解:

$2^2\times 5^2\times {\mathrm{37}}^1\times {\mathrm{5521}}^1$

素因数の和:5572

約数の個数: 36

約数和(自身を含む): 45534412

約数和(自身を除く): 25106712

約数列:

[1, 2, 4, 5, 10, 20, 25, 37, 50, 74, 100, 148, 185, 370, 740, 925, 1850, 3700, 5521, 11042, 22084, 27605, 55210, 110420, 138025, 204277, 276050, 408554, 552100, 817108, 1021385, 2042770, 4085540, 5106925, 10213850, 20427700]

約数ペア:

[(1, 20427700), (2, 10213850), (4, 5106925), (5, 4085540), (10, 2042770), (20, 1021385), (25, 817108), (37, 552100), (50, 408554), (74, 276050), (100, 204277), (148, 138025), (185, 110420), (370, 55210), (740, 27605), (925, 22084), (1850, 11042), (3700, 5521)]