66312500

素因数分解:

$2^2\times 5^6\times {\mathrm{1061}}^1$

素因数の和:1095

約数の個数: 42

約数和(自身を含む): 145193454

約数和(自身を除く): 78880954

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 625, 1061, 1250, 2122, 2500, 3125, 4244, 5305, 6250, 10610, 12500, 15625, 21220, 26525, 31250, 53050, 62500, 106100, 132625, 265250, 530500, 663125, 1326250, 2652500, 3315625, 6631250, 13262500, 16578125, 33156250, 66312500]

約数ペア:

[(1, 66312500), (2, 33156250), (4, 16578125), (5, 13262500), (10, 6631250), (20, 3315625), (25, 2652500), (50, 1326250), (100, 663125), (125, 530500), (250, 265250), (500, 132625), (625, 106100), (1061, 62500), (1250, 53050), (2122, 31250), (2500, 26525), (3125, 21220), (4244, 15625), (5305, 12500), (6250, 10610)]