218368840

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{188249}}^1$

素因数の和:188289

約数の個数: 32

約数和(自身を含む): 508275000

約数和(自身を除く): 289906160

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 188249, 376498, 752996, 941245, 1505992, 1882490, 3764980, 5459221, 7529960, 10918442, 21836884, 27296105, 43673768, 54592210, 109184420, 218368840]

約数ペア:

[(1, 218368840), (2, 109184420), (4, 54592210), (5, 43673768), (8, 27296105), (10, 21836884), (20, 10918442), (29, 7529960), (40, 5459221), (58, 3764980), (116, 1882490), (145, 1505992), (232, 941245), (290, 752996), (580, 376498), (1160, 188249)]