219233960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{498259}}^1$

素因数の和:498281

約数の個数: 32

約数和(自身を含む): 538120800

約数和(自身を除く): 318886840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 498259, 996518, 1993036, 2491295, 3986072, 4982590, 5480849, 9965180, 10961698, 19930360, 21923396, 27404245, 43846792, 54808490, 109616980, 219233960]

約数ペア:

[(1, 219233960), (2, 109616980), (4, 54808490), (5, 43846792), (8, 27404245), (10, 21923396), (11, 19930360), (20, 10961698), (22, 9965180), (40, 5480849), (44, 4982590), (55, 3986072), (88, 2491295), (110, 1993036), (220, 996518), (440, 498259)]