20394500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{5827}}^1$

素因数の和:5853

約数の個数: 48

約数和(自身を含む): 50913408

約数和(自身を除く): 30518908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 125, 140, 175, 250, 350, 500, 700, 875, 1750, 3500, 5827, 11654, 23308, 29135, 40789, 58270, 81578, 116540, 145675, 163156, 203945, 291350, 407890, 582700, 728375, 815780, 1019725, 1456750, 2039450, 2913500, 4078900, 5098625, 10197250, 20394500]

約数ペア:

[(1, 20394500), (2, 10197250), (4, 5098625), (5, 4078900), (7, 2913500), (10, 2039450), (14, 1456750), (20, 1019725), (25, 815780), (28, 728375), (35, 582700), (50, 407890), (70, 291350), (100, 203945), (125, 163156), (140, 145675), (175, 116540), (250, 81578), (350, 58270), (500, 40789), (700, 29135), (875, 23308), (1750, 11654), (3500, 5827)]