20135680

素因数分解:

$2^8\times 5^1\times {\mathrm{15731}}^1$

素因数の和:15752

約数の個数: 36

約数和(自身を含む): 48234312

約数和(自身を除く): 28098632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 15731, 31462, 62924, 78655, 125848, 157310, 251696, 314620, 503392, 629240, 1006784, 1258480, 2013568, 2516960, 4027136, 5033920, 10067840, 20135680]

約数ペア:

[(1, 20135680), (2, 10067840), (4, 5033920), (5, 4027136), (8, 2516960), (10, 2013568), (16, 1258480), (20, 1006784), (32, 629240), (40, 503392), (64, 314620), (80, 251696), (128, 157310), (160, 125848), (256, 78655), (320, 62924), (640, 31462), (1280, 15731)]