20190400

素因数分解:

$2^6\times 5^2\times {\mathrm{12619}}^1$

素因数の和:12641

約数の個数: 42

約数和(自身を含む): 49684940

約数和(自身を除く): 29494540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 12619, 25238, 50476, 63095, 100952, 126190, 201904, 252380, 315475, 403808, 504760, 630950, 807616, 1009520, 1261900, 2019040, 2523800, 4038080, 5047600, 10095200, 20190400]

約数ペア:

[(1, 20190400), (2, 10095200), (4, 5047600), (5, 4038080), (8, 2523800), (10, 2019040), (16, 1261900), (20, 1009520), (25, 807616), (32, 630950), (40, 504760), (50, 403808), (64, 315475), (80, 252380), (100, 201904), (160, 126190), (200, 100952), (320, 63095), (400, 50476), (800, 25238), (1600, 12619)]