199271180

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{4349}}^1$

素因数の和:4466

約数の個数: 48

約数和(自身を含む): 438480000

約数和(自身を除く): 239208820

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 79, 116, 145, 158, 290, 316, 395, 580, 790, 1580, 2291, 4349, 4582, 8698, 9164, 11455, 17396, 21745, 22910, 43490, 45820, 86980, 126121, 252242, 343571, 504484, 630605, 687142, 1261210, 1374284, 1717855, 2522420, 3435710, 6871420, 9963559, 19927118, 39854236, 49817795, 99635590, 199271180]

約数ペア:

[(1, 199271180), (2, 99635590), (4, 49817795), (5, 39854236), (10, 19927118), (20, 9963559), (29, 6871420), (58, 3435710), (79, 2522420), (116, 1717855), (145, 1374284), (158, 1261210), (290, 687142), (316, 630605), (395, 504484), (580, 343571), (790, 252242), (1580, 126121), (2291, 86980), (4349, 45820), (4582, 43490), (8698, 22910), (9164, 21745), (11455, 17396)]