201531820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1439513}}^1$

素因数の和:1439529

約数の個数: 24

約数和(自身を含む): 483676704

約数和(自身を除く): 282144884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1439513, 2879026, 5758052, 7197565, 10076591, 14395130, 20153182, 28790260, 40306364, 50382955, 100765910, 201531820]

約数ペア:

[(1, 201531820), (2, 100765910), (4, 50382955), (5, 40306364), (7, 28790260), (10, 20153182), (14, 14395130), (20, 10076591), (28, 7197565), (35, 5758052), (70, 2879026), (140, 1439513)]