82561250

素因数分解:

$2^1\times 5^4\times {\mathrm{257}}^2$

素因数の和:536

約数の個数: 30

約数和(自身を含む): 155357301

約数和(自身を除く): 72796051

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 257, 514, 625, 1250, 1285, 2570, 6425, 12850, 32125, 64250, 66049, 132098, 160625, 321250, 330245, 660490, 1651225, 3302450, 8256125, 16512250, 41280625, 82561250]

約数ペア:

[(1, 82561250), (2, 41280625), (5, 16512250), (10, 8256125), (25, 3302450), (50, 1651225), (125, 660490), (250, 330245), (257, 321250), (514, 160625), (625, 132098), (1250, 66049), (1285, 64250), (2570, 32125), (6425, 12850)]