12878900

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{4441}}^1$

素因数の和:4484

約数の個数: 36

約数和(自身を含む): 28917420

約数和(自身を除く): 16038520

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 100, 116, 145, 290, 580, 725, 1450, 2900, 4441, 8882, 17764, 22205, 44410, 88820, 111025, 128789, 222050, 257578, 444100, 515156, 643945, 1287890, 2575780, 3219725, 6439450, 12878900]

約数ペア:

[(1, 12878900), (2, 6439450), (4, 3219725), (5, 2575780), (10, 1287890), (20, 643945), (25, 515156), (29, 444100), (50, 257578), (58, 222050), (100, 128789), (116, 111025), (145, 88820), (290, 44410), (580, 22205), (725, 17764), (1450, 8882), (2900, 4441)]