20500700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{18637}}^1$

素因数の和:18662

約数の個数: 36

約数和(自身を含む): 48533352

約数和(自身を除く): 28032652

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 18637, 37274, 74548, 93185, 186370, 205007, 372740, 410014, 465925, 820028, 931850, 1025035, 1863700, 2050070, 4100140, 5125175, 10250350, 20500700]

約数ペア:

[(1, 20500700), (2, 10250350), (4, 5125175), (5, 4100140), (10, 2050070), (11, 1863700), (20, 1025035), (22, 931850), (25, 820028), (44, 465925), (50, 410014), (55, 372740), (100, 205007), (110, 186370), (220, 93185), (275, 74548), (550, 37274), (1100, 18637)]