20697050

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^3\times {\mathrm{311}}^1$

素因数の和:356

約数の個数: 48

約数和(自身を含む): 42479424

約数和(自身を除く): 21782374

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 121, 242, 275, 311, 550, 605, 622, 1210, 1331, 1555, 2662, 3025, 3110, 3421, 6050, 6655, 6842, 7775, 13310, 15550, 17105, 33275, 34210, 37631, 66550, 75262, 85525, 171050, 188155, 376310, 413941, 827882, 940775, 1881550, 2069705, 4139410, 10348525, 20697050]

約数ペア:

[(1, 20697050), (2, 10348525), (5, 4139410), (10, 2069705), (11, 1881550), (22, 940775), (25, 827882), (50, 413941), (55, 376310), (110, 188155), (121, 171050), (242, 85525), (275, 75262), (311, 66550), (550, 37631), (605, 34210), (622, 33275), (1210, 17105), (1331, 15550), (1555, 13310), (2662, 7775), (3025, 6842), (3110, 6655), (3421, 6050)]