80338020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{191281}}^1$

素因数の和:191300

約数の個数: 48

約数和(自身を含む): 257083008

約数和(自身を除く): 176744988

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 191281, 382562, 573843, 765124, 956405, 1147686, 1338967, 1912810, 2295372, 2677934, 2869215, 3825620, 4016901, 5355868, 5738430, 6694835, 8033802, 11476860, 13389670, 16067604, 20084505, 26779340, 40169010, 80338020]

約数ペア:

[(1, 80338020), (2, 40169010), (3, 26779340), (4, 20084505), (5, 16067604), (6, 13389670), (7, 11476860), (10, 8033802), (12, 6694835), (14, 5738430), (15, 5355868), (20, 4016901), (21, 3825620), (28, 2869215), (30, 2677934), (35, 2295372), (42, 1912810), (60, 1338967), (70, 1147686), (84, 956405), (105, 765124), (140, 573843), (210, 382562), (420, 191281)]