20709420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{547}}^1\times {\mathrm{631}}^1$

素因数の和:1190

約数の個数: 48

約数和(自身を含む): 58184448

約数和(自身を除く): 37475028

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 547, 631, 1094, 1262, 1641, 1893, 2188, 2524, 2735, 3155, 3282, 3786, 5470, 6310, 6564, 7572, 8205, 9465, 10940, 12620, 16410, 18930, 32820, 37860, 345157, 690314, 1035471, 1380628, 1725785, 2070942, 3451570, 4141884, 5177355, 6903140, 10354710, 20709420]

約数ペア:

[(1, 20709420), (2, 10354710), (3, 6903140), (4, 5177355), (5, 4141884), (6, 3451570), (10, 2070942), (12, 1725785), (15, 1380628), (20, 1035471), (30, 690314), (60, 345157), (547, 37860), (631, 32820), (1094, 18930), (1262, 16410), (1641, 12620), (1893, 10940), (2188, 9465), (2524, 8205), (2735, 7572), (3155, 6564), (3282, 6310), (3786, 5470)]