7760000

素因数分解:

$2^7\times 5^4\times {\mathrm{97}}^1$

素因数の和:131

約数の個数: 80

約数和(自身を含む): 19517190

約数和(自身を除く): 11757190

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 97, 100, 125, 128, 160, 194, 200, 250, 320, 388, 400, 485, 500, 625, 640, 776, 800, 970, 1000, 1250, 1552, 1600, 1940, 2000, 2425, 2500, 3104, 3200, 3880, 4000, 4850, 5000, 6208, 7760, 8000, 9700, 10000, 12125, 12416, 15520, 16000, 19400, 20000, 24250, 31040, 38800, 40000, 48500, 60625, 62080, 77600, 80000, 97000, 121250, 155200, 194000, 242500, 310400, 388000, 485000, 776000, 970000, 1552000, 1940000, 3880000, 7760000]

約数ペア:

[(1, 7760000), (2, 3880000), (4, 1940000), (5, 1552000), (8, 970000), (10, 776000), (16, 485000), (20, 388000), (25, 310400), (32, 242500), (40, 194000), (50, 155200), (64, 121250), (80, 97000), (97, 80000), (100, 77600), (125, 62080), (128, 60625), (160, 48500), (194, 40000), (200, 38800), (250, 31040), (320, 24250), (388, 20000), (400, 19400), (485, 16000), (500, 15520), (625, 12416), (640, 12125), (776, 10000), (800, 9700), (970, 8000), (1000, 7760), (1250, 6208), (1552, 5000), (1600, 4850), (1940, 4000), (2000, 3880), (2425, 3200), (2500, 3104)]