81352000

素因数分解:

$2^6\times 5^3\times {\mathrm{10169}}^1$

素因数の和:10196

約数の個数: 56

約数和(自身を含む): 201488040

約数和(自身を除く): 120136040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 800, 1000, 1600, 2000, 4000, 8000, 10169, 20338, 40676, 50845, 81352, 101690, 162704, 203380, 254225, 325408, 406760, 508450, 650816, 813520, 1016900, 1271125, 1627040, 2033800, 2542250, 3254080, 4067600, 5084500, 8135200, 10169000, 16270400, 20338000, 40676000, 81352000]

約数ペア:

[(1, 81352000), (2, 40676000), (4, 20338000), (5, 16270400), (8, 10169000), (10, 8135200), (16, 5084500), (20, 4067600), (25, 3254080), (32, 2542250), (40, 2033800), (50, 1627040), (64, 1271125), (80, 1016900), (100, 813520), (125, 650816), (160, 508450), (200, 406760), (250, 325408), (320, 254225), (400, 203380), (500, 162704), (800, 101690), (1000, 81352), (1600, 50845), (2000, 40676), (4000, 20338), (8000, 10169)]