20430080

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1451}}^1$

素因数の和:1483

約数の個数: 72

約数和(自身を含む): 53421984

約数和(自身を除く): 32991904

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 640, 704, 880, 1280, 1408, 1451, 1760, 2816, 2902, 3520, 5804, 7040, 7255, 11608, 14080, 14510, 15961, 23216, 29020, 31922, 46432, 58040, 63844, 79805, 92864, 116080, 127688, 159610, 185728, 232160, 255376, 319220, 371456, 464320, 510752, 638440, 928640, 1021504, 1276880, 1857280, 2043008, 2553760, 4086016, 5107520, 10215040, 20430080]

約数ペア:

[(1, 20430080), (2, 10215040), (4, 5107520), (5, 4086016), (8, 2553760), (10, 2043008), (11, 1857280), (16, 1276880), (20, 1021504), (22, 928640), (32, 638440), (40, 510752), (44, 464320), (55, 371456), (64, 319220), (80, 255376), (88, 232160), (110, 185728), (128, 159610), (160, 127688), (176, 116080), (220, 92864), (256, 79805), (320, 63844), (352, 58040), (440, 46432), (640, 31922), (704, 29020), (880, 23216), (1280, 15961), (1408, 14510), (1451, 14080), (1760, 11608), (2816, 7255), (2902, 7040), (3520, 5804)]