19686040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{44741}}^1$

素因数の和:44763

約数の個数: 32

約数和(自身を含む): 48321360

約数和(自身を除く): 28635320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 44741, 89482, 178964, 223705, 357928, 447410, 492151, 894820, 984302, 1789640, 1968604, 2460755, 3937208, 4921510, 9843020, 19686040]

約数ペア:

[(1, 19686040), (2, 9843020), (4, 4921510), (5, 3937208), (8, 2460755), (10, 1968604), (11, 1789640), (20, 984302), (22, 894820), (40, 492151), (44, 447410), (55, 357928), (88, 223705), (110, 178964), (220, 89482), (440, 44741)]