19281920

素因数分解:

$2^{11}\times 5^1\times 7^1\times {\mathrm{269}}^1$

素因数の和:303

約数の個数: 96

約数和(自身を含む): 53071200

約数和(自身を除く): 33789280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 269, 280, 320, 448, 512, 538, 560, 640, 896, 1024, 1076, 1120, 1280, 1345, 1792, 1883, 2048, 2152, 2240, 2560, 2690, 3584, 3766, 4304, 4480, 5120, 5380, 7168, 7532, 8608, 8960, 9415, 10240, 10760, 14336, 15064, 17216, 17920, 18830, 21520, 30128, 34432, 35840, 37660, 43040, 60256, 68864, 71680, 75320, 86080, 120512, 137728, 150640, 172160, 241024, 275456, 301280, 344320, 482048, 550912, 602560, 688640, 964096, 1205120, 1377280, 1928192, 2410240, 2754560, 3856384, 4820480, 9640960, 19281920]

約数ペア:

[(1, 19281920), (2, 9640960), (4, 4820480), (5, 3856384), (7, 2754560), (8, 2410240), (10, 1928192), (14, 1377280), (16, 1205120), (20, 964096), (28, 688640), (32, 602560), (35, 550912), (40, 482048), (56, 344320), (64, 301280), (70, 275456), (80, 241024), (112, 172160), (128, 150640), (140, 137728), (160, 120512), (224, 86080), (256, 75320), (269, 71680), (280, 68864), (320, 60256), (448, 43040), (512, 37660), (538, 35840), (560, 34432), (640, 30128), (896, 21520), (1024, 18830), (1076, 17920), (1120, 17216), (1280, 15064), (1345, 14336), (1792, 10760), (1883, 10240), (2048, 9415), (2152, 8960), (2240, 8608), (2560, 7532), (2690, 7168), (3584, 5380), (3766, 5120), (4304, 4480)]