19066025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 28123200

約数和(自身を除く): 9057175

約数列:

[1, 5, 11, 19, 25, 41, 55, 89, 95, 205, 209, 275, 445, 451, 475, 779, 979, 1025, 1045, 1691, 2225, 2255, 3649, 3895, 4895, 5225, 8455, 8569, 11275, 18245, 18601, 19475, 24475, 40139, 42275, 42845, 69331, 91225, 93005, 200695, 214225, 346655, 465025, 762641, 1003475, 1733275, 3813205, 19066025]

約数ペア:

[(1, 19066025), (5, 3813205), (11, 1733275), (19, 1003475), (25, 762641), (41, 465025), (55, 346655), (89, 214225), (95, 200695), (205, 93005), (209, 91225), (275, 69331), (445, 42845), (451, 42275), (475, 40139), (779, 24475), (979, 19475), (1025, 18601), (1045, 18245), (1691, 11275), (2225, 8569), (2255, 8455), (3649, 5225), (3895, 4895)]