15520000

素因数分解:

$2^8\times 5^4\times {\mathrm{97}}^1$

素因数の和:133

約数の個数: 90

約数和(自身を含む): 39110918

約数和(自身を除く): 23590918

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, 256, 320, 388, 400, 485, 500, 625, 640, 776, 800, 970, 1000, 1250, 1280, 1552, 1600, 1940, 2000, 2425, 2500, 3104, 3200, 3880, 4000, 4850, 5000, 6208, 6400, 7760, 8000, 9700, 10000, 12125, 12416, 15520, 16000, 19400, 20000, 24250, 24832, 31040, 32000, 38800, 40000, 48500, 60625, 62080, 77600, 80000, 97000, 121250, 124160, 155200, 160000, 194000, 242500, 310400, 388000, 485000, 620800, 776000, 970000, 1552000, 1940000, 3104000, 3880000, 7760000, 15520000]

約数ペア:

[(1, 15520000), (2, 7760000), (4, 3880000), (5, 3104000), (8, 1940000), (10, 1552000), (16, 970000), (20, 776000), (25, 620800), (32, 485000), (40, 388000), (50, 310400), (64, 242500), (80, 194000), (97, 160000), (100, 155200), (125, 124160), (128, 121250), (160, 97000), (194, 80000), (200, 77600), (250, 62080), (256, 60625), (320, 48500), (388, 40000), (400, 38800), (485, 32000), (500, 31040), (625, 24832), (640, 24250), (776, 20000), (800, 19400), (970, 16000), (1000, 15520), (1250, 12416), (1280, 12125), (1552, 10000), (1600, 9700), (1940, 8000), (2000, 7760), (2425, 6400), (2500, 6208), (3104, 5000), (3200, 4850), (3880, 4000)]