19725020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{140893}}^1$

素因数の和:140909

約数の個数: 24

約数和(自身を含む): 47340384

約数和(自身を除く): 27615364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 140893, 281786, 563572, 704465, 986251, 1408930, 1972502, 2817860, 3945004, 4931255, 9862510, 19725020]

約数ペア:

[(1, 19725020), (2, 9862510), (4, 4931255), (5, 3945004), (7, 2817860), (10, 1972502), (14, 1408930), (20, 986251), (28, 704465), (35, 563572), (70, 281786), (140, 140893)]