12420520

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{6337}}^1$

素因数の和:6362

約数の個数: 48

約数和(自身を含む): 32513940

約数和(自身を除く): 20093420

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 6337, 12674, 25348, 31685, 44359, 50696, 63370, 88718, 126740, 177436, 221795, 253480, 310513, 354872, 443590, 621026, 887180, 1242052, 1552565, 1774360, 2484104, 3105130, 6210260, 12420520]

約数ペア:

[(1, 12420520), (2, 6210260), (4, 3105130), (5, 2484104), (7, 1774360), (8, 1552565), (10, 1242052), (14, 887180), (20, 621026), (28, 443590), (35, 354872), (40, 310513), (49, 253480), (56, 221795), (70, 177436), (98, 126740), (140, 88718), (196, 63370), (245, 50696), (280, 44359), (392, 31685), (490, 25348), (980, 12674), (1960, 6337)]