13405420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13679}}^1$

素因数の和:13702

約数の個数: 36

約数和(自身を含む): 32749920

約数和(自身を除く): 19344500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 13679, 27358, 54716, 68395, 95753, 136790, 191506, 273580, 383012, 478765, 670271, 957530, 1340542, 1915060, 2681084, 3351355, 6702710, 13405420]

約数ペア:

[(1, 13405420), (2, 6702710), (4, 3351355), (5, 2681084), (7, 1915060), (10, 1340542), (14, 957530), (20, 670271), (28, 478765), (35, 383012), (49, 273580), (70, 191506), (98, 136790), (140, 95753), (196, 68395), (245, 54716), (490, 27358), (980, 13679)]