42812500

素因数分解:

$2^2\times 5^7\times {\mathrm{137}}^1$

素因数の和:176

約数の個数: 48

約数和(自身を含む): 94335696

約数和(自身を除く): 51523196

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 137, 250, 274, 500, 548, 625, 685, 1250, 1370, 2500, 2740, 3125, 3425, 6250, 6850, 12500, 13700, 15625, 17125, 31250, 34250, 62500, 68500, 78125, 85625, 156250, 171250, 312500, 342500, 428125, 856250, 1712500, 2140625, 4281250, 8562500, 10703125, 21406250, 42812500]

約数ペア:

[(1, 42812500), (2, 21406250), (4, 10703125), (5, 8562500), (10, 4281250), (20, 2140625), (25, 1712500), (50, 856250), (100, 428125), (125, 342500), (137, 312500), (250, 171250), (274, 156250), (500, 85625), (548, 78125), (625, 68500), (685, 62500), (1250, 34250), (1370, 31250), (2500, 17125), (2740, 15625), (3125, 13700), (3425, 12500), (6250, 6850)]