19279820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{137713}}^1$

素因数の和:137729

約数の個数: 24

約数和(自身を含む): 46271904

約数和(自身を除く): 26992084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 137713, 275426, 550852, 688565, 963991, 1377130, 1927982, 2754260, 3855964, 4819955, 9639910, 19279820]

約数ペア:

[(1, 19279820), (2, 9639910), (4, 4819955), (5, 3855964), (7, 2754260), (10, 1927982), (14, 1377130), (20, 963991), (28, 688565), (35, 550852), (70, 275426), (140, 137713)]