20890522165

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{1949}}^1\times {\mathrm{2683}}^1$

素因数の和:4701

約数の個数: 32

約数和(自身を含む): 27132019200

約数和(自身を除く): 6241497035

約数列:

[1, 5, 17, 47, 85, 235, 799, 1949, 2683, 3995, 9745, 13415, 33133, 45611, 91603, 126101, 165665, 228055, 458015, 630505, 1557251, 2143717, 5229167, 7786255, 10718585, 26145835, 88895839, 245770849, 444479195, 1228854245, 4178104433, 20890522165]

約数ペア:

[(1, 20890522165), (5, 4178104433), (17, 1228854245), (47, 444479195), (85, 245770849), (235, 88895839), (799, 26145835), (1949, 10718585), (2683, 7786255), (3995, 5229167), (9745, 2143717), (13415, 1557251), (33133, 630505), (45611, 458015), (91603, 228055), (126101, 165665)]