47900000

素因数分解:

$2^5\times 5^5\times {\mathrm{479}}^1$

素因数の和:514

約数の個数: 72

約数和(自身を含む): 118117440

約数和(自身を除く): 70217440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 479, 500, 625, 800, 958, 1000, 1250, 1916, 2000, 2395, 2500, 3125, 3832, 4000, 4790, 5000, 6250, 7664, 9580, 10000, 11975, 12500, 15328, 19160, 20000, 23950, 25000, 38320, 47900, 50000, 59875, 76640, 95800, 100000, 119750, 191600, 239500, 299375, 383200, 479000, 598750, 958000, 1197500, 1496875, 1916000, 2395000, 2993750, 4790000, 5987500, 9580000, 11975000, 23950000, 47900000]

約数ペア:

[(1, 47900000), (2, 23950000), (4, 11975000), (5, 9580000), (8, 5987500), (10, 4790000), (16, 2993750), (20, 2395000), (25, 1916000), (32, 1496875), (40, 1197500), (50, 958000), (80, 598750), (100, 479000), (125, 383200), (160, 299375), (200, 239500), (250, 191600), (400, 119750), (479, 100000), (500, 95800), (625, 76640), (800, 59875), (958, 50000), (1000, 47900), (1250, 38320), (1916, 25000), (2000, 23950), (2395, 20000), (2500, 19160), (3125, 15328), (3832, 12500), (4000, 11975), (4790, 10000), (5000, 9580), (6250, 7664)]