20621020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{147293}}^1$

素因数の和:147309

約数の個数: 24

約数和(自身を含む): 49490784

約数和(自身を除く): 28869764

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 147293, 294586, 589172, 736465, 1031051, 1472930, 2062102, 2945860, 4124204, 5155255, 10310510, 20621020]

約数ペア:

[(1, 20621020), (2, 10310510), (4, 5155255), (5, 4124204), (7, 2945860), (10, 2062102), (14, 1472930), (20, 1031051), (28, 736465), (35, 589172), (70, 294586), (140, 147293)]