218076460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{222527}}^1$

素因数の和:222550

約数の個数: 36

約数和(自身を含む): 532732032

約数和(自身を除く): 314655572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 222527, 445054, 890108, 1112635, 1557689, 2225270, 3115378, 4450540, 6230756, 7788445, 10903823, 15576890, 21807646, 31153780, 43615292, 54519115, 109038230, 218076460]

約数ペア:

[(1, 218076460), (2, 109038230), (4, 54519115), (5, 43615292), (7, 31153780), (10, 21807646), (14, 15576890), (20, 10903823), (28, 7788445), (35, 6230756), (49, 4450540), (70, 3115378), (98, 2225270), (140, 1557689), (196, 1112635), (245, 890108), (490, 445054), (980, 222527)]