20007979180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{798403}}^1$

素因数の和:798598

約数の個数: 48

約数和(自身を含む): 48287473920

約数和(自身を除く): 28279494740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 179, 358, 716, 895, 1253, 1790, 2506, 3580, 5012, 6265, 12530, 25060, 798403, 1596806, 3193612, 3992015, 5588821, 7984030, 11177642, 15968060, 22355284, 27944105, 55888210, 111776420, 142914137, 285828274, 571656548, 714570685, 1000398959, 1429141370, 2000797918, 2858282740, 4001595836, 5001994795, 10003989590, 20007979180]

約数ペア:

[(1, 20007979180), (2, 10003989590), (4, 5001994795), (5, 4001595836), (7, 2858282740), (10, 2000797918), (14, 1429141370), (20, 1000398959), (28, 714570685), (35, 571656548), (70, 285828274), (140, 142914137), (179, 111776420), (358, 55888210), (716, 27944105), (895, 22355284), (1253, 15968060), (1790, 11177642), (2506, 7984030), (3580, 5588821), (5012, 3992015), (6265, 3193612), (12530, 1596806), (25060, 798403)]