199771208

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{2003}}^1$

素因数の和:2166

約数の個数: 64

約数和(自身を含む): 464607360

約数和(自身を除く): 264836152

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 137, 182, 274, 364, 548, 728, 959, 1096, 1781, 1918, 2003, 3562, 3836, 4006, 7124, 7672, 8012, 12467, 14021, 14248, 16024, 24934, 26039, 28042, 49868, 52078, 56084, 99736, 104156, 112168, 182273, 208312, 274411, 364546, 548822, 729092, 1097644, 1458184, 1920877, 2195288, 3567343, 3841754, 7134686, 7683508, 14269372, 15367016, 24971401, 28538744, 49942802, 99885604, 199771208]

約数ペア:

[(1, 199771208), (2, 99885604), (4, 49942802), (7, 28538744), (8, 24971401), (13, 15367016), (14, 14269372), (26, 7683508), (28, 7134686), (52, 3841754), (56, 3567343), (91, 2195288), (104, 1920877), (137, 1458184), (182, 1097644), (274, 729092), (364, 548822), (548, 364546), (728, 274411), (959, 208312), (1096, 182273), (1781, 112168), (1918, 104156), (2003, 99736), (3562, 56084), (3836, 52078), (4006, 49868), (7124, 28042), (7672, 26039), (8012, 24934), (12467, 16024), (14021, 14248)]