19680320

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5591}}^1$

素因数の和:5619

約数の個数: 56

約数和(自身を含む): 51133248

約数和(自身を除く): 31452928

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 160, 176, 220, 320, 352, 440, 704, 880, 1760, 3520, 5591, 11182, 22364, 27955, 44728, 55910, 61501, 89456, 111820, 123002, 178912, 223640, 246004, 307505, 357824, 447280, 492008, 615010, 894560, 984016, 1230020, 1789120, 1968032, 2460040, 3936064, 4920080, 9840160, 19680320]

約数ペア:

[(1, 19680320), (2, 9840160), (4, 4920080), (5, 3936064), (8, 2460040), (10, 1968032), (11, 1789120), (16, 1230020), (20, 984016), (22, 894560), (32, 615010), (40, 492008), (44, 447280), (55, 357824), (64, 307505), (80, 246004), (88, 223640), (110, 178912), (160, 123002), (176, 111820), (220, 89456), (320, 61501), (352, 55910), (440, 44728), (704, 27955), (880, 22364), (1760, 11182), (3520, 5591)]