20327120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23099}}^1$

素因数の和:23123

約数の個数: 40

約数和(自身を含む): 51559200

約数和(自身を除く): 31232080

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 23099, 46198, 92396, 115495, 184792, 230990, 254089, 369584, 461980, 508178, 923960, 1016356, 1270445, 1847920, 2032712, 2540890, 4065424, 5081780, 10163560, 20327120]

約数ペア:

[(1, 20327120), (2, 10163560), (4, 5081780), (5, 4065424), (8, 2540890), (10, 2032712), (11, 1847920), (16, 1270445), (20, 1016356), (22, 923960), (40, 508178), (44, 461980), (55, 369584), (80, 254089), (88, 230990), (110, 184792), (176, 115495), (220, 92396), (440, 46198), (880, 23099)]