20838250

素因数分解:

$2^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:184

約数の個数: 64

約数和(自身を含む): 42456960

約数和(自身を除く): 21618710

約数列:

[1, 2, 5, 10, 19, 25, 38, 41, 50, 82, 95, 107, 125, 190, 205, 214, 250, 410, 475, 535, 779, 950, 1025, 1070, 1558, 2033, 2050, 2375, 2675, 3895, 4066, 4387, 4750, 5125, 5350, 7790, 8774, 10165, 10250, 13375, 19475, 20330, 21935, 26750, 38950, 43870, 50825, 83353, 97375, 101650, 109675, 166706, 194750, 219350, 254125, 416765, 508250, 548375, 833530, 1096750, 2083825, 4167650, 10419125, 20838250]

約数ペア:

[(1, 20838250), (2, 10419125), (5, 4167650), (10, 2083825), (19, 1096750), (25, 833530), (38, 548375), (41, 508250), (50, 416765), (82, 254125), (95, 219350), (107, 194750), (125, 166706), (190, 109675), (205, 101650), (214, 97375), (250, 83353), (410, 50825), (475, 43870), (535, 38950), (779, 26750), (950, 21935), (1025, 20330), (1070, 19475), (1558, 13375), (2033, 10250), (2050, 10165), (2375, 8774), (2675, 7790), (3895, 5350), (4066, 5125), (4387, 4750)]