28807345

素因数分解:

$5^1\times 7^2\times {\mathrm{307}}^1\times {\mathrm{383}}^1$

素因数の和:709

約数の個数: 24

約数和(自身を含む): 40449024

約数和(自身を除く): 11641679

約数列:

[1, 5, 7, 35, 49, 245, 307, 383, 1535, 1915, 2149, 2681, 10745, 13405, 15043, 18767, 75215, 93835, 117581, 587905, 823067, 4115335, 5761469, 28807345]

約数ペア:

[(1, 28807345), (5, 5761469), (7, 4115335), (35, 823067), (49, 587905), (245, 117581), (307, 93835), (383, 75215), (1535, 18767), (1915, 15043), (2149, 13405), (2681, 10745)]