251010880

素因数分解:

$2^6\times 5^1\times {\mathrm{784409}}^1$

素因数の和:784426

約数の個数: 28

約数和(自身を含む): 597720420

約数和(自身を除く): 346709540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 784409, 1568818, 3137636, 3922045, 6275272, 7844090, 12550544, 15688180, 25101088, 31376360, 50202176, 62752720, 125505440, 251010880]

約数ペア:

[(1, 251010880), (2, 125505440), (4, 62752720), (5, 50202176), (8, 31376360), (10, 25101088), (16, 15688180), (20, 12550544), (32, 7844090), (40, 6275272), (64, 3922045), (80, 3137636), (160, 1568818), (320, 784409)]