20190375

素因数分解:

$3^2\times 5^3\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:289

約数の個数: 48

約数和(自身を含む): 36942048

約数和(自身を除く): 16751673

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 131, 137, 225, 375, 393, 411, 655, 685, 1125, 1179, 1233, 1965, 2055, 3275, 3425, 5895, 6165, 9825, 10275, 16375, 17125, 17947, 29475, 30825, 49125, 51375, 53841, 89735, 147375, 154125, 161523, 269205, 448675, 807615, 1346025, 2243375, 4038075, 6730125, 20190375]

約数ペア:

[(1, 20190375), (3, 6730125), (5, 4038075), (9, 2243375), (15, 1346025), (25, 807615), (45, 448675), (75, 269205), (125, 161523), (131, 154125), (137, 147375), (225, 89735), (375, 53841), (393, 51375), (411, 49125), (655, 30825), (685, 29475), (1125, 17947), (1179, 17125), (1233, 16375), (1965, 10275), (2055, 9825), (3275, 6165), (3425, 5895)]