20070500

素因数分解:

$2^2\times 5^3\times {\mathrm{137}}^1\times {\mathrm{293}}^1$

素因数の和:449

約数の個数: 48

約数和(自身を含む): 44304624

約数和(自身を除く): 24234124

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 137, 250, 274, 293, 500, 548, 586, 685, 1172, 1370, 1465, 2740, 2930, 3425, 5860, 6850, 7325, 13700, 14650, 17125, 29300, 34250, 36625, 40141, 68500, 73250, 80282, 146500, 160564, 200705, 401410, 802820, 1003525, 2007050, 4014100, 5017625, 10035250, 20070500]

約数ペア:

[(1, 20070500), (2, 10035250), (4, 5017625), (5, 4014100), (10, 2007050), (20, 1003525), (25, 802820), (50, 401410), (100, 200705), (125, 160564), (137, 146500), (250, 80282), (274, 73250), (293, 68500), (500, 40141), (548, 36625), (586, 34250), (685, 29300), (1172, 17125), (1370, 14650), (1465, 13700), (2740, 7325), (2930, 6850), (3425, 5860)]