388518400

素因数分解:

$2^9\times 5^2\times {\mathrm{127}}^1\times {\mathrm{239}}^1$

素因数の和:394

約数の個数: 120

約数和(自身を含む): 974223360

約数和(自身を除く): 585704960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 127, 128, 160, 200, 239, 254, 256, 320, 400, 478, 508, 512, 635, 640, 800, 956, 1016, 1195, 1270, 1280, 1600, 1912, 2032, 2390, 2540, 2560, 3175, 3200, 3824, 4064, 4780, 5080, 5975, 6350, 6400, 7648, 8128, 9560, 10160, 11950, 12700, 12800, 15296, 16256, 19120, 20320, 23900, 25400, 30353, 30592, 32512, 38240, 40640, 47800, 50800, 60706, 61184, 65024, 76480, 81280, 95600, 101600, 121412, 122368, 151765, 152960, 162560, 191200, 203200, 242824, 303530, 305920, 325120, 382400, 406400, 485648, 607060, 611840, 758825, 764800, 812800, 971296, 1214120, 1517650, 1529600, 1625600, 1942592, 2428240, 3035300, 3059200, 3885184, 4856480, 6070600, 7770368, 9712960, 12141200, 15540736, 19425920, 24282400, 38851840, 48564800, 77703680, 97129600, 194259200, 388518400]

約数ペア:

[(1, 388518400), (2, 194259200), (4, 97129600), (5, 77703680), (8, 48564800), (10, 38851840), (16, 24282400), (20, 19425920), (25, 15540736), (32, 12141200), (40, 9712960), (50, 7770368), (64, 6070600), (80, 4856480), (100, 3885184), (127, 3059200), (128, 3035300), (160, 2428240), (200, 1942592), (239, 1625600), (254, 1529600), (256, 1517650), (320, 1214120), (400, 971296), (478, 812800), (508, 764800), (512, 758825), (635, 611840), (640, 607060), (800, 485648), (956, 406400), (1016, 382400), (1195, 325120), (1270, 305920), (1280, 303530), (1600, 242824), (1912, 203200), (2032, 191200), (2390, 162560), (2540, 152960), (2560, 151765), (3175, 122368), (3200, 121412), (3824, 101600), (4064, 95600), (4780, 81280), (5080, 76480), (5975, 65024), (6350, 61184), (6400, 60706), (7648, 50800), (8128, 47800), (9560, 40640), (10160, 38240), (11950, 32512), (12700, 30592), (12800, 30353), (15296, 25400), (16256, 23900), (19120, 20320)]