438271820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{3130513}}^1$

素因数の和:3130529

約数の個数: 24

約数和(自身を含む): 1051852704

約数和(自身を除く): 613580884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 3130513, 6261026, 12522052, 15652565, 21913591, 31305130, 43827182, 62610260, 87654364, 109567955, 219135910, 438271820]

約数ペア:

[(1, 438271820), (2, 219135910), (4, 109567955), (5, 87654364), (7, 62610260), (10, 43827182), (14, 31305130), (20, 21913591), (28, 15652565), (35, 12522052), (70, 6261026), (140, 3130513)]