425228800

素因数分解:

$2^9\times 5^2\times {\mathrm{139}}^1\times {\mathrm{239}}^1$

素因数の和:406

約数の個数: 120

約数和(自身を含む): 1065556800

約数和(自身を除く): 640328000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 139, 160, 200, 239, 256, 278, 320, 400, 478, 512, 556, 640, 695, 800, 956, 1112, 1195, 1280, 1390, 1600, 1912, 2224, 2390, 2560, 2780, 3200, 3475, 3824, 4448, 4780, 5560, 5975, 6400, 6950, 7648, 8896, 9560, 11120, 11950, 12800, 13900, 15296, 17792, 19120, 22240, 23900, 27800, 30592, 33221, 35584, 38240, 44480, 47800, 55600, 61184, 66442, 71168, 76480, 88960, 95600, 111200, 122368, 132884, 152960, 166105, 177920, 191200, 222400, 265768, 305920, 332210, 355840, 382400, 444800, 531536, 611840, 664420, 764800, 830525, 889600, 1063072, 1328840, 1529600, 1661050, 1779200, 2126144, 2657680, 3059200, 3322100, 4252288, 5315360, 6644200, 8504576, 10630720, 13288400, 17009152, 21261440, 26576800, 42522880, 53153600, 85045760, 106307200, 212614400, 425228800]

約数ペア:

[(1, 425228800), (2, 212614400), (4, 106307200), (5, 85045760), (8, 53153600), (10, 42522880), (16, 26576800), (20, 21261440), (25, 17009152), (32, 13288400), (40, 10630720), (50, 8504576), (64, 6644200), (80, 5315360), (100, 4252288), (128, 3322100), (139, 3059200), (160, 2657680), (200, 2126144), (239, 1779200), (256, 1661050), (278, 1529600), (320, 1328840), (400, 1063072), (478, 889600), (512, 830525), (556, 764800), (640, 664420), (695, 611840), (800, 531536), (956, 444800), (1112, 382400), (1195, 355840), (1280, 332210), (1390, 305920), (1600, 265768), (1912, 222400), (2224, 191200), (2390, 177920), (2560, 166105), (2780, 152960), (3200, 132884), (3475, 122368), (3824, 111200), (4448, 95600), (4780, 88960), (5560, 76480), (5975, 71168), (6400, 66442), (6950, 61184), (7648, 55600), (8896, 47800), (9560, 44480), (11120, 38240), (11950, 35584), (12800, 33221), (13900, 30592), (15296, 27800), (17792, 23900), (19120, 22240)]