1388876800

素因数分解:

$2^{10}\times 5^2\times {\mathrm{227}}^1\times {\mathrm{239}}^1$

素因数の和:496

約数の個数: 132

約数和(自身を含む): 3472367040

約数和(自身を除く): 2083490240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 227, 239, 256, 320, 400, 454, 478, 512, 640, 800, 908, 956, 1024, 1135, 1195, 1280, 1600, 1816, 1912, 2270, 2390, 2560, 3200, 3632, 3824, 4540, 4780, 5120, 5675, 5975, 6400, 7264, 7648, 9080, 9560, 11350, 11950, 12800, 14528, 15296, 18160, 19120, 22700, 23900, 25600, 29056, 30592, 36320, 38240, 45400, 47800, 54253, 58112, 61184, 72640, 76480, 90800, 95600, 108506, 116224, 122368, 145280, 152960, 181600, 191200, 217012, 232448, 244736, 271265, 290560, 305920, 363200, 382400, 434024, 542530, 581120, 611840, 726400, 764800, 868048, 1085060, 1162240, 1223680, 1356325, 1452800, 1529600, 1736096, 2170120, 2712650, 2905600, 3059200, 3472192, 4340240, 5425300, 5811200, 6118400, 6944384, 8680480, 10850600, 13888768, 17360960, 21701200, 27777536, 34721920, 43402400, 55555072, 69443840, 86804800, 138887680, 173609600, 277775360, 347219200, 694438400, 1388876800]

約数ペア:

[(1, 1388876800), (2, 694438400), (4, 347219200), (5, 277775360), (8, 173609600), (10, 138887680), (16, 86804800), (20, 69443840), (25, 55555072), (32, 43402400), (40, 34721920), (50, 27777536), (64, 21701200), (80, 17360960), (100, 13888768), (128, 10850600), (160, 8680480), (200, 6944384), (227, 6118400), (239, 5811200), (256, 5425300), (320, 4340240), (400, 3472192), (454, 3059200), (478, 2905600), (512, 2712650), (640, 2170120), (800, 1736096), (908, 1529600), (956, 1452800), (1024, 1356325), (1135, 1223680), (1195, 1162240), (1280, 1085060), (1600, 868048), (1816, 764800), (1912, 726400), (2270, 611840), (2390, 581120), (2560, 542530), (3200, 434024), (3632, 382400), (3824, 363200), (4540, 305920), (4780, 290560), (5120, 271265), (5675, 244736), (5975, 232448), (6400, 217012), (7264, 191200), (7648, 181600), (9080, 152960), (9560, 145280), (11350, 122368), (11950, 116224), (12800, 108506), (14528, 95600), (15296, 90800), (18160, 76480), (19120, 72640), (22700, 61184), (23900, 58112), (25600, 54253), (29056, 47800), (30592, 45400), (36320, 38240)]