20992840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47711}}^1$

素因数の和:47733

約数の個数: 32

約数和(自身を含む): 51528960

約数和(自身を除く): 30536120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 47711, 95422, 190844, 238555, 381688, 477110, 524821, 954220, 1049642, 1908440, 2099284, 2624105, 4198568, 5248210, 10496420, 20992840]

約数ペア:

[(1, 20992840), (2, 10496420), (4, 5248210), (5, 4198568), (8, 2624105), (10, 2099284), (11, 1908440), (20, 1049642), (22, 954220), (40, 524821), (44, 477110), (55, 381688), (88, 238555), (110, 190844), (220, 95422), (440, 47711)]