20563760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{36721}}^1$

素因数の和:36741

約数の個数: 40

約数和(自身を含む): 54642336

約数和(自身を除く): 34078576

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 36721, 73442, 146884, 183605, 257047, 293768, 367210, 514094, 587536, 734420, 1028188, 1285235, 1468840, 2056376, 2570470, 2937680, 4112752, 5140940, 10281880, 20563760]

約数ペア:

[(1, 20563760), (2, 10281880), (4, 5140940), (5, 4112752), (7, 2937680), (8, 2570470), (10, 2056376), (14, 1468840), (16, 1285235), (20, 1028188), (28, 734420), (35, 587536), (40, 514094), (56, 367210), (70, 293768), (80, 257047), (112, 183605), (140, 146884), (280, 73442), (560, 36721)]