78841600

素因数分解:

$2^8\times 5^2\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:250

約数の個数: 108

約数和(自身を含む): 198709504

約数和(自身を除く): 119867904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 97, 100, 127, 128, 160, 194, 200, 254, 256, 320, 388, 400, 485, 508, 635, 640, 776, 800, 970, 1016, 1270, 1280, 1552, 1600, 1940, 2032, 2425, 2540, 3104, 3175, 3200, 3880, 4064, 4850, 5080, 6208, 6350, 6400, 7760, 8128, 9700, 10160, 12319, 12416, 12700, 15520, 16256, 19400, 20320, 24638, 24832, 25400, 31040, 32512, 38800, 40640, 49276, 50800, 61595, 62080, 77600, 81280, 98552, 101600, 123190, 124160, 155200, 162560, 197104, 203200, 246380, 307975, 310400, 394208, 406400, 492760, 615950, 620800, 788416, 812800, 985520, 1231900, 1576832, 1971040, 2463800, 3153664, 3942080, 4927600, 7884160, 9855200, 15768320, 19710400, 39420800, 78841600]

約数ペア:

[(1, 78841600), (2, 39420800), (4, 19710400), (5, 15768320), (8, 9855200), (10, 7884160), (16, 4927600), (20, 3942080), (25, 3153664), (32, 2463800), (40, 1971040), (50, 1576832), (64, 1231900), (80, 985520), (97, 812800), (100, 788416), (127, 620800), (128, 615950), (160, 492760), (194, 406400), (200, 394208), (254, 310400), (256, 307975), (320, 246380), (388, 203200), (400, 197104), (485, 162560), (508, 155200), (635, 124160), (640, 123190), (776, 101600), (800, 98552), (970, 81280), (1016, 77600), (1270, 62080), (1280, 61595), (1552, 50800), (1600, 49276), (1940, 40640), (2032, 38800), (2425, 32512), (2540, 31040), (3104, 25400), (3175, 24832), (3200, 24638), (3880, 20320), (4064, 19400), (4850, 16256), (5080, 15520), (6208, 12700), (6350, 12416), (6400, 12319), (7760, 10160), (8128, 9700)]