20069120

素因数分解:

$2^8\times 5^1\times {\mathrm{15679}}^1$

素因数の和:15700

約数の個数: 36

約数和(自身を含む): 48074880

約数和(自身を除く): 28005760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 15679, 31358, 62716, 78395, 125432, 156790, 250864, 313580, 501728, 627160, 1003456, 1254320, 2006912, 2508640, 4013824, 5017280, 10034560, 20069120]

約数ペア:

[(1, 20069120), (2, 10034560), (4, 5017280), (5, 4013824), (8, 2508640), (10, 2006912), (16, 1254320), (20, 1003456), (32, 627160), (40, 501728), (64, 313580), (80, 250864), (128, 156790), (160, 125432), (256, 78395), (320, 62716), (640, 31358), (1280, 15679)]