199985972

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 371616000

約数和(自身を除く): 171630028

約数列:

[1, 2, 4, 29, 58, 79, 116, 139, 157, 158, 278, 314, 316, 556, 628, 2291, 4031, 4553, 4582, 8062, 9106, 9164, 10981, 12403, 16124, 18212, 21823, 21962, 24806, 43646, 43924, 49612, 87292, 318449, 359687, 632867, 636898, 719374, 1265734, 1273796, 1438748, 1724017, 2531468, 3448034, 6896068, 49996493, 99992986, 199985972]

約数ペア:

[(1, 199985972), (2, 99992986), (4, 49996493), (29, 6896068), (58, 3448034), (79, 2531468), (116, 1724017), (139, 1438748), (157, 1273796), (158, 1265734), (278, 719374), (314, 636898), (316, 632867), (556, 359687), (628, 318449), (2291, 87292), (4031, 49612), (4553, 43924), (4582, 43646), (8062, 24806), (9106, 21962), (9164, 21823), (10981, 18212), (12403, 16124)]