81907452

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{521}}^1$

素因数の和:939

約数の個数: 72

約数和(自身を含む): 226869552

約数和(自身を除く): 144962100

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 99, 132, 198, 396, 397, 521, 794, 1042, 1191, 1563, 1588, 2084, 2382, 3126, 3573, 4367, 4689, 4764, 5731, 6252, 7146, 8734, 9378, 11462, 13101, 14292, 17193, 17468, 18756, 22924, 26202, 34386, 39303, 51579, 52404, 68772, 78606, 103158, 157212, 206316, 206837, 413674, 620511, 827348, 1241022, 1861533, 2275207, 2482044, 3723066, 4550414, 6825621, 7446132, 9100828, 13651242, 20476863, 27302484, 40953726, 81907452]

約数ペア:

[(1, 81907452), (2, 40953726), (3, 27302484), (4, 20476863), (6, 13651242), (9, 9100828), (11, 7446132), (12, 6825621), (18, 4550414), (22, 3723066), (33, 2482044), (36, 2275207), (44, 1861533), (66, 1241022), (99, 827348), (132, 620511), (198, 413674), (396, 206837), (397, 206316), (521, 157212), (794, 103158), (1042, 78606), (1191, 68772), (1563, 52404), (1588, 51579), (2084, 39303), (2382, 34386), (3126, 26202), (3573, 22924), (4367, 18756), (4689, 17468), (4764, 17193), (5731, 14292), (6252, 13101), (7146, 11462), (8734, 9378)]