51821420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{52879}}^1$

素因数の和:52902

約数の個数: 36

約数和(自身を含む): 126594720

約数和(自身を除く): 74773300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 52879, 105758, 211516, 264395, 370153, 528790, 740306, 1057580, 1480612, 1850765, 2591071, 3701530, 5182142, 7403060, 10364284, 12955355, 25910710, 51821420]

約数ペア:

[(1, 51821420), (2, 25910710), (4, 12955355), (5, 10364284), (7, 7403060), (10, 5182142), (14, 3701530), (20, 2591071), (28, 1850765), (35, 1480612), (49, 1057580), (70, 740306), (98, 528790), (140, 370153), (196, 264395), (245, 211516), (490, 105758), (980, 52879)]