20416690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{1109}}^1$

素因数の和:1386

約数の個数: 32

約数和(自身を含む): 42197760

約数和(自身を除く): 21781070

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 263, 526, 1109, 1315, 1841, 2218, 2630, 3682, 5545, 7763, 9205, 11090, 15526, 18410, 38815, 77630, 291667, 583334, 1458335, 2041669, 2916670, 4083338, 10208345, 20416690]

約数ペア:

[(1, 20416690), (2, 10208345), (5, 4083338), (7, 2916670), (10, 2041669), (14, 1458335), (35, 583334), (70, 291667), (263, 77630), (526, 38815), (1109, 18410), (1315, 15526), (1841, 11090), (2218, 9205), (2630, 7763), (3682, 5545)]