51191600

素因数分解:

$2^4\times 5^2\times {\mathrm{127979}}^1$

素因数の和:127997

約数の個数: 30

約数和(自身を含む): 122988780

約数和(自身を除く): 71797180

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 127979, 255958, 511916, 639895, 1023832, 1279790, 2047664, 2559580, 3199475, 5119160, 6398950, 10238320, 12797900, 25595800, 51191600]

約数ペア:

[(1, 51191600), (2, 25595800), (4, 12797900), (5, 10238320), (8, 6398950), (10, 5119160), (16, 3199475), (20, 2559580), (25, 2047664), (40, 1279790), (50, 1023832), (80, 639895), (100, 511916), (200, 255958), (400, 127979)]